When you are certain about something, it means you are very sure. You have no questions in your mind. For example, if someone asks, "Is that a cat?" and you know it is, you can say, "Yes, I am certain it's a cat."
You can also use certain to talk about a specific person or thing without saying their name. Like, "A certain student did very well," means one special student, but we don't say who.
When you are certain about something, it means you are really sure. You have no doubts in your mind. For example, if you say, 'I am certain it will rain,' it means you strongly believe rain is coming.
We can also use certain to talk about someone or something specific, but we don't say their name. Like, 'A certain friend told me a secret.' This means a specific friend, but you're not saying which one.
When you are certain about something, it means you have no doubts at all; you are completely sure. For example, if you say, 'I am certain it will rain today,' it means you are very confident about the rain.
It can also be used to talk about a specific person or thing without actually naming them. You might hear something like, 'A certain person told me a secret,' meaning someone specific but not identified. So, it helps to indicate something known but not explicitly stated.
At the C1 level, the term "certain" carries nuanced implications that extend beyond its basic A2 definition. While it still denotes a state of being completely sure, it can also subtly imply a degree of reservation or a lack of complete disclosure, particularly when referring to unnamed persons or things. For example, saying "a certain individual" suggests the speaker knows who it is but chooses not to name them, perhaps for discretion or strategic reasons. Furthermore, "certain" can be used to emphasize a particular quality or characteristic, as in "a certain charm," highlighting an indefinable yet present attribute. Understanding these layers of meaning is crucial for accurate interpretation and sophisticated communication.
At the C2 level, 'certain' transcends its basic definition of assuredness, delving into nuances of epistemic modality and specificity. When used to express conviction, it often implies a high degree of subjective certainty, sometimes even bordering on dogmatism, and can be subtly contrasted with objective evidence. Furthermore, in its indefinite sense, 'certain' can function as a rhetorical device to introduce an unspecified individual or entity, adding an element of intrigue or generality to a discourse without sacrificing precision in the broader context of the communication.
§ What does it mean and when do people use it?
The word "certain" is a versatile adjective that plays a significant role in everyday English communication. At its core, "certain" conveys a sense of sureness, confidence, and lack of doubt. However, its usage extends beyond this primary meaning, allowing us to refer to specific, yet unnamed, entities or to express a degree of inevitability. Understanding these nuances is crucial for learners at the CEFR A2 level, as it enriches their ability to express themselves with greater precision and naturalness.
- DEFINITION
- To be completely sure of something without any doubts. It can also be used to refer to a specific person or thing that is not named directly.
Let's delve deeper into the different ways "certain" is used and the contexts in which you'll encounter it.
§ Expressing Certainty and Confidence
One of the most common applications of "certain" is to express that you have no doubt about something. When you are "certain" about a fact, an outcome, or a belief, it means you are completely convinced of its truth or likelihood. This usage often reflects a strong personal conviction or a situation where evidence leaves no room for questioning.
I'm certain that the sun will rise tomorrow.
In this example, the speaker is expressing absolute confidence in a natural phenomenon. There's no room for debate or doubt. Similarly, you might hear:
Are you certain about your answer?
Here, the question is probing the level of conviction the other person has regarding their response. It's asking if they are absolutely sure.
§ Referring to Undefined Specifics
Another fascinating aspect of "certain" is its ability to refer to a specific person or thing without explicitly naming them. This usage is particularly useful when you want to convey that something is known or exists, but you don't need or want to provide precise details.
Certain people enjoy spicy food, while others prefer mild flavors.
In this context, "certain people" refers to a specific, but unnamed, group of individuals. The speaker isn't identifying them by name, but they are clearly indicating that a particular subset of people is being discussed.
There are certain rules you need to follow.
Here, "certain rules" implies that there are specific rules in question, even if those rules are not listed at that moment. The listener understands that a defined set of regulations exists.
§ Distinguishing "Certain" from "Sure"
While "certain" and "sure" are often used interchangeably to express confidence, there can be subtle differences in their formality and common usage. "Sure" is generally more informal and frequently used in casual conversation, while "certain" can sound slightly more formal or emphatic.
- Sure: Often used in everyday speech. "I'm sure he'll be here soon."
- Certain: Can convey a stronger, more definite conviction. "I am absolutely certain of his innocence."
However, for A2 learners, it's perfectly acceptable to use them as synonyms when expressing a lack of doubt. The context will usually make the meaning clear.
§ Common Phrases with "Certain"
You'll often hear "certain" embedded in common phrases that are useful to know:
- For certain: This phrase emphasizes absolute certainty.
I know for certain that I locked the door.
- To a certain extent/degree: This indicates that something is true or applicable up to a particular point, but not entirely.
He is right to a certain extent, but not completely.
By understanding these varied uses and common phrases, A2 learners can confidently incorporate "certain" into their vocabulary, enhancing both their comprehension and expression in English. Remember to pay attention to the context to fully grasp which meaning of "certain" is being conveyed.
How Formal Is It?
"The evidence presented led to an unequivocal conclusion regarding the defendant's guilt."
"I am certain that the train departs at 3 PM."
"Are you sure you locked the door?"
"Mommy, are you super sure we're going to the park today?"
"Are we getting pizza tonight? Fo' shizzle!"
知っておくべき文法
Use 'certain' before a noun to mean a specific but unnamed person or thing. For example, 'A certain person told me a secret.'
A certain student always asks insightful questions.
Use 'certain' after the verb 'to be' when expressing sureness or conviction. For example, 'I am certain that she will succeed.'
He is certain about his decision to move.
When using 'certain' to mean 'sure', it can be followed by a 'that' clause. For example, 'We are certain that the project will be finished on time.'
She was certain that she had locked the door.
When 'certain' means 'sure', it can be followed by an infinitive phrase (to + verb). For example, 'They are certain to win the game.'
He is certain to arrive early.
Avoid using 'certain' with indefinite articles (a/an) when it means 'sure', as 'a certain' implies an unnamed specific thing, not sureness. For example, 'I am certain,' not 'I am a certain.'
It is certain that it will rain tomorrow.
レベル別の例文
I am certain that she will come to the party.
Я уверен, что она придет на вечеринку.
Are you certain about the answer?
Ты уверен насчет ответа?
It's certain to rain later today.
Сегодня позже точно пойдет дождь.
A certain person told me a secret.
Один определенный человек рассказал мне секрет.
Here 'certain' means a specific person, but their name is not mentioned.
I need to buy a certain type of bread.
Мне нужно купить определенный вид хлеба.
Here 'certain' means a specific type of bread.
She was certain that she locked the door.
Она была уверена, что заперла дверь.
For certain, I will help you tomorrow.
Наверняка, я помогу тебе завтра.
'For certain' is an idiom meaning 'definitely'.
There are certain rules we must follow.
Есть определенные правила, которым мы должны следовать.
Here 'certain' means specific rules.
Are you certain you locked the door before you left?
Czy jesteś pewien, że zamknąłeś drzwi przed wyjściem?
I'm certain that I left my keys on the kitchen counter.
Jestem pewien, że zostawiłem klucze na blacie kuchennym.
She was not certain about the answer, so she guessed.
Nie była pewna odpowiedzi, więc zgadła.
There are certain rules you need to follow in this library.
Istnieją pewne zasady, których musisz przestrzegać w tej bibliotece.
Used to refer to unspecified rules.
A certain friend of mine told me about this new cafe.
Pewien mój przyjaciel opowiedział mi o tej nowej kawiarni.
Used to refer to an unspecified friend.
He has a certain charm that people find attractive.
Ma pewien urok, który ludzie uważają za atrakcyjny.
Used to refer to an unspecified quality.
It is certain that the weather will be cold tomorrow.
Jest pewne, że jutro będzie zimno.
For certain reasons, I cannot tell you my secret.
Z pewnych powodów nie mogę zdradzić ci mojego sekretu.
Used to refer to unspecified reasons.
I'm certain that I locked the door before I left.
Tengo la certeza de que cerré la puerta con llave antes de irme.
Used with 'that' clause to express conviction.
There are certain rules that everyone must follow.
Hay ciertas reglas que todos deben seguir.
Used before a plural noun to mean 'some' or 'particular'.
It's certain that the project will be completed on time.
Es cierto que el proyecto se completará a tiempo.
Used impersonally with 'it is certain that'.
She has a certain charm that attracts people to her.
Ella tiene un cierto encanto que atrae a la gente hacia ella.
Used before a singular noun to mean 'a particular, but unspecified'.
Are you absolutely certain about your decision?
¿Estás absolutamente seguro de tu decisión?
Adverb 'absolutely' intensifies 'certain'.
For certain, I will be there to support you.
Por supuesto, estaré allí para apoyarte.
Idiomatic expression 'for certain' meaning 'without a doubt'.
He expressed a certain reluctance to join the team.
Expresó cierta reticencia a unirse al equipo.
Used before a noun indicating a quality or feeling.
It is not certain what will happen next.
No es seguro lo que pasará después.
Used in a negative construction to express doubt.
She was absolutely certain that she had locked the door, even though she couldn't find her keys.
She was absolutely sure that she had locked the door, even though she couldn't find her keys.
Here, 'certain' expresses complete assurance.
The scientist was certain that his hypothesis would be proven correct with further experimentation.
The scientist was sure that his hypothesis would be proven correct with further experimentation.
Used with 'that' clause to express certainty about a future event or outcome.
There is a certain ambiguity in the artist's work that allows for multiple interpretations.
There is a particular ambiguity in the artist's work that allows for multiple interpretations.
'A certain' is used to refer to something specific but not explicitly named or defined, often implying a degree of vagueness.
He had a certain charm that made him popular with everyone he met, despite his often quiet demeanor.
He had a particular charm that made him popular with everyone he met, despite his often quiet demeanor.
Similar to the previous example, 'a certain' describes a quality that is present but hard to pinpoint precisely.
I'm not certain of the exact time of the meeting, but I know it's sometime this afternoon.
I'm not sure of the exact time of the meeting, but I know it's sometime this afternoon.
Used with 'of' to express certainty about a specific piece of information.
It is certain that the new policy will have significant implications for the local economy.
It is sure that the new policy will have significant implications for the local economy.
Impersonal construction 'It is certain that...' to express an undeniable truth or strong likelihood.
There are certain unspoken rules of etiquette that one must observe in this formal setting.
There are particular unspoken rules of etiquette that one must observe in this formal setting.
Used to introduce a specific, often implicit, set of things or principles.
Despite the challenges, she remained certain of her ability to overcome any obstacles.
Despite the challenges, she remained sure of her ability to overcome any obstacles.
Used with 'of' to express self-assurance or conviction.
The physicist, after years of meticulous research, was finally certain of the existence of the Higgs boson, a triumph that reshaped our understanding of the universe.
physicist, meticulous research, certain, existence, Higgs boson, triumph, reshaped, understanding, universe
Here, 'certain' expresses absolute conviction, often the culmination of extensive effort or evidence. It's paired with an abstract concept ('existence').
Despite the prevailing skepticism, a certain indefatigable spirit among the activists ensured the movement's eventual success, demonstrating the power of unwavering resolve.
prevailing skepticism, certain indefatigable spirit, activists, ensured, movement's success, demonstrating, power, unwavering resolve
'A certain' is used here to refer to a specific, yet unnamed or perhaps indefinable quality ('indefatigable spirit'). It adds a touch of emphasis without explicitly naming the characteristic.
The eminent art critic, known for her discerning eye, was certain that the recently discovered painting was a genuine Caravaggio, a pronouncement that sent ripples through the art world.
eminent art critic, discerning eye, certain, recently discovered painting, genuine Caravaggio, pronouncement, ripples, art world
Similar to the first example, 'certain' denotes a high degree of confidence, stemming from expertise. The 'that' clause elaborates on what she is certain of.
While the details remain shrouded in secrecy, it is certain that a clandestine meeting took place between the two world leaders, profoundly impacting subsequent geopolitical alignments.
details, shrouded in secrecy, certain, clandestine meeting, two world leaders, profoundly impacting, subsequent geopolitical alignments
'It is certain that...' is a common impersonal construction used to state a fact with absolute conviction, even if the surrounding context is unclear.
He possessed a certain aristocratic hauteur, an almost imperceptible air of superiority that, while off-putting to some, nonetheless commanded a degree of respect.
possessed, certain aristocratic hauteur, imperceptible air of superiority, off-putting, commanded, degree of respect
Another instance of 'a certain' to describe a specific, yet subtly presented, characteristic or quality. It implies a distinctive, almost inherent trait.
The forensic anthropologist, examining the ancient remains, was certain of the individual's gender and approximate age, piecing together a narrative from fragmented evidence.
forensic anthropologist, examining, ancient remains, certain, individual's gender, approximate age, piecing together, narrative, fragmented evidence
'Certain' is used here in a professional context, implying certainty derived from scientific analysis and expertise. It directly precedes the specific facts that are certain.
In the labyrinthine corridors of power, a certain palpable tension always accompanied discussions concerning national security, a reflection of the high stakes involved.
labyrinthine corridors of power, certain palpable tension, accompanied, discussions, national security, reflection, high stakes involved
'A certain' modifies an abstract noun ('tension'), suggesting a specific, identifiable type of tension that is characteristic of the situation.
Despite the ambiguity of the historical documents, the historian was certain that the monarch's decision to abdicate was influenced by a confluence of political and personal factors.
ambiguity, historical documents, historian, certain, monarch's decision, abdicate, influenced by, confluence, political and personal factors
Here, 'certain' again expresses a confident conclusion, even in the face of incomplete or ambiguous information, suggesting a well-reasoned deduction.
よく使う組み合わせ
よく使うフレーズ
I'm certain
Estoy seguro/a
Are you certain?
¿Estás seguro/a?
It's certain that
Es cierto que
for certain
con certeza
make certain
asegurarse
a certain someone
cierta persona
a certain something
cierta cosa
feel certain
sentirse seguro/a
quite certain
bastante seguro/a
almost certain
casi seguro/a
文法パターン
慣用句と表現
"for certain"
definitely, without a doubt
I don't know for certain if she's coming to the party.
neutral"a certain something"
an indefinable quality or characteristic
She has a certain something that makes her stand out.
neutral"to make certain"
to ensure something happens or is true
Please make certain that all the doors are locked before you leave.
neutral"to a certain extent"
partly, to some degree
I agree with you to a certain extent, but not entirely.
neutral"a certain air"
a particular quality or impression given off by someone or something
The old house had a certain air of mystery about it.
neutral"certain of oneself"
confident and self-assured
She's very certain of herself and rarely doubts her decisions.
neutral"a certain je ne sais quoi"
an attractive quality that cannot be described
She has a certain je ne sais quoi that makes her very charming.
formal"to put something beyond a certain point"
to ensure something is indisputable or undeniable
His excellent performance put his promotion beyond a certain point.
formal"a certain amount of"
some, an unspecified quantity of
You need a certain amount of courage to climb that mountain.
neutral"to get a certain idea about something"
to form a particular opinion or impression
Don't get the certain idea that I'm not happy with your work.
neutral文型パターン
to be certain that + clause
I am certain that he will come.
to be certain of + noun phrase
She is certain of her success.
a certain + noun
A certain person told me a secret.
for certain
I don't know for certain if she's coming.
to make certain (that) + clause
Please make certain that all the doors are locked.
certain + plural noun
Certain foods can cause allergies.
certainly
It will certainly rain tomorrow.
to feel certain about + noun phrase
I feel certain about my decision.
語族
名詞
形容詞
使い方
HTML with . Some usage notes for 'certain' (adjective) include: 1. **Feeling sure:** You can use 'certain' to express that you are completely sure of something. For example, 'I am certain that she will do well in the exam.' 2. **Referring to a specific, but unnamed, person or thing:** 'Certain' can also be used to talk about a particular person or thing without naming them directly. For instance, 'A certain person told me a secret.' or 'There are certain rules you need to follow.' 3. **Used with 'of' or 'that':** When expressing certainty, 'certain' is often followed by 'of' + noun/pronoun or 'that' + clause. Examples: 'Are you certain of your facts?' or 'He is certain that he saw her.'
HTML with . Here are some common mistakes people make when using the word 'certain': 1. **Confusing 'certain' with 'surely':** While both relate to certainty, 'surely' is an adverb meaning 'without doubt' or 'definitely,' often expressing an expectation. 'Certain' is an adjective meaning 'completely sure.' For example, instead of 'It will certain be a good day,' you should say 'It will certainly be a good day' or 'I am certain it will be a good day.' 2. **Incorrect prepositions:** Sometimes people use incorrect prepositions after 'certain.' Remember to use 'of' or 'that' when expressing certainty about something. Incorrect: 'I am certain about his arrival.' Correct: 'I am certain of his arrival' or 'I am certain that he will arrive.' 3. **Overusing 'certain' when 'some' or 'a particular' would be more appropriate:** While 'certain' can mean 'a specific but unnamed,' sometimes a simpler word fits better. For example, instead of 'Certain students didn't understand the lesson,' you might say 'Some students didn't understand the lesson' if you're not trying to imply a specific group you're avoiding naming. 4. **Using 'certainly' (adverb) instead of 'certain' (adjective) in adjective positions:** For example, incorrect: 'He was certainly happy about the news.' Correct: 'He was certainly happy about the news' (here 'certainly' modifies 'happy', but if you mean 'he was sure', then it should be 'He was certain about the news').
ヒント
Understand the two main meanings
The word certain has two primary uses. One is about being sure, and the other is about a specific but unnamed person or thing.
Practice with 'sure'
Create sentences where certain means sure. For example, 'I am certain that the answer is correct.' or 'Are you certain about that?'
Practice with 'specific but unnamed'
Create sentences where certain refers to something specific but not directly named. For example, 'A certain person told me about it.' or 'There are certain rules you must follow.'
Identify synonyms for 'sure'
Think of words that mean the same as certain when it's used as 'sure', like confident, positive, or convinced.
Identify synonyms for 'specific but unnamed'
Consider words like particular, some, or individual when certain is used to describe something specific but not named.
Look for collocations
Pay attention to words that often go with certain, such as 'for certain' (meaning definitely) or 'a certain amount' (meaning a specific quantity).
Use it in questions
Practice asking questions using certain to mean 'sure'. For example, 'Are you certain you locked the door?'
Use it in negative sentences
Practice using certain in negative contexts. For example, 'I am not certain where he went.' or 'It's not certain that it will rain.'
Read example sentences
Find and read many example sentences using certain in both its meanings to see how it's used naturally.
Write your own sentences
The best way to solidify your understanding is to write at least five sentences for each meaning of certain yourself.
実生活で練習する
実際の使用場面
When you're asked if you're coming to an event and you know for sure you will be there.
- I am certain I will be there.
- Are you certain you can make it?
- Yes, I'm certain.
When you are unsure about a fact or piece of information but someone else states it confidently.
- Are you absolutely certain about that?
- I'm not certain, but I think so.
- He seemed certain of his answer.
When you are talking about something specific but don't want to name it directly, perhaps to be vague or polite.
- A certain person told me...
- There's a certain way of doing things.
- He had a certain charm.
When you are expressing a strong belief or conviction about something.
- I am certain that hard work pays off.
- It's certain to rain later.
- She was certain of her decision.
When someone is trying to convince you of something and you need to express your level of belief.
- I'm not certain I believe you.
- Can you make me certain?
- He made me certain of his honesty.
会話のきっかけ
"What is something you are absolutely certain about regarding your future?"
"Have you ever been certain about something only to find out you were wrong? What happened?"
"Is there a certain type of music or movie that you always enjoy?"
"What makes you certain that a friend is a true friend?"
"When learning a new skill, what helps you feel certain that you are making progress?"
日記のテーマ
Describe a time when you felt completely certain about a decision you made. What was the outcome?
Write about a 'certain person' who has had a significant impact on your life, without naming them directly.
Reflect on a situation where you were uncertain, and how you navigated that feeling. What did you learn?
What are some things in your life that you consider 'certainties'? How do they provide comfort or stability?
Imagine you are certain of achieving a major goal. How does that certainty influence your actions and attitude?
よくある質問
10 問While both 'certain' and 'sure' mean having no doubts, 'certain' can sometimes imply a more objective or factual basis for that belief, whereas 'sure' can be more subjective or based on personal feeling. For example, 'I am certain the sun will rise tomorrow' versus 'I am sure I left my keys here somewhere'.
Yes, it can! When you say 'a certain person' or 'a certain thing,' it means you're referring to someone or something specific, but you're not naming them directly, perhaps because they're not important to the context or you want to keep it private. For instance, 'A certain student always finishes their homework early.'
Yes, 'certain' is generally considered a strong word because it conveys a high level of confidence or conviction. It suggests that there's little to no doubt about something.
You can say things like, 'I am certain that she will succeed,' or 'It is certain to rain later.' It shows you have no doubt at all.
Absolutely! You often hear 'certain of' when you're talking about being sure about something. For example, 'I am certain of his innocence' or 'Are you certain of your answer?'
'To a certain extent' means partly, or up to a particular point, but not completely. It suggests there are limits to something. For example, 'I agree with you to a certain extent.'
Yes, a few common ones include 'for certain' (meaning definitely), 'to a certain degree' (similar to 'to a certain extent'), and 'a certain something' (referring to an indefinable quality).
Sometimes, yes. When you say 'certain people' or 'certain matters,' it can mean 'some particular people' or 'some particular matters' without being specific about who or what they are. For example, 'Certain foods can cause allergies.'
The opposite of 'certain' would be words like 'uncertain,' 'doubtful,' or 'unsure.' These words convey a lack of confidence or conviction.
Generally, 'certain' has a positive or neutral connotation. Being certain about something is usually seen as a good thing, as it implies knowledge and confidence. However, if someone is 'certain' about something incorrect, it could be viewed negatively.
自分をテスト 144 問
I am ___ that I locked the door.
To be 'certain' means to be completely sure. In this sentence, the person is sure about locking the door.
Are you ___ he will come to the party?
'Sure' is a synonym for 'certain' and fits the context of asking if someone believes another person will attend.
A ___ person called me, but I don't know who it was.
Here, 'certain' means a specific person, but not named directly. The caller is known to exist but their identity is not revealed.
I am ___ that 2 + 2 is 4.
This sentence expresses complete confidence in a simple mathematical fact.
There was a ___ dog in the park, but I didn't get its name.
Similar to the previous example, 'certain' refers to a specific, unnamed dog.
She was ___ she left her keys on the table.
This sentence indicates that she had no doubt about where she left her keys.
I am ______ that she will come to the party.
'Certain' means to be completely sure. In this sentence, it means the speaker is sure she will come.
He has a ______ way of doing things.
'Certain' can mean a specific or particular way, even if not named directly.
Are you ______ about the answer?
To be 'certain' about an answer means to be sure it is correct.
If you are 'certain' about something, you have doubts.
No, if you are 'certain', you do NOT have any doubts. You are completely sure.
The word 'certain' can be used to talk about a specific person.
Yes, 'certain' can refer to a specific person or thing not named directly, like 'a certain person said...'
I am 'certain' means I am not sure.
No, 'I am certain' means I am completely sure.
Write a sentence using 'certain' to mean 'sure'.
Well written! Good try! Check the sample answer below.
Sample answer
I am certain that the sun will rise tomorrow.
Write a sentence using 'certain' to refer to a specific, but unnamed, person or thing.
Well written! Good try! Check the sample answer below.
Sample answer
A certain student forgot their book.
Complete the sentence: 'I am certain that...' (Write two more words to finish the sentence)
Well written! Good try! Check the sample answer below.
Sample answer
I am certain that he is happy.
What does 'certain' mean in the sentence 'I am certain you will keep it!'?
Read this passage:
My friend told me a secret. She said, 'I am certain you will keep it!' I promised her I would. It was a certain type of information that she didn't want everyone to know.
What does 'certain' mean in the sentence 'I am certain you will keep it!'?
In this context, 'certain' means completely sure, without any doubts.
In this context, 'certain' means completely sure, without any doubts.
What does 'certain' mean in the sentence 'There was a certain cat...'?
Read this passage:
There was a certain cat that always slept on the fence. Every day, I saw this cat. It was a friendly cat, but it didn't have a name.
What does 'certain' mean in the sentence 'There was a certain cat...'?
Here, 'certain' is used to refer to a specific cat without giving its name.
Here, 'certain' is used to refer to a specific cat without giving its name.
How did the students feel after the teacher said she was 'certain'?
Read this passage:
The teacher said, 'I am certain that you can all pass this test if you study hard.' The students felt more confident after hearing this.
How did the students feel after the teacher said she was 'certain'?
When the teacher said she was 'certain' they could pass, it made the students feel more confident.
When the teacher said she was 'certain' they could pass, it made the students feel more confident.
The correct order forms a simple sentence stating certainty about the book's ownership.
This order expresses certainty about her arrival today.
The words are arranged to form a sentence indicating he saw a specific, unnamed cat.
I'm not ___ if I locked the door.
'Certain' is the adjective needed here to describe the speaker's state of doubt.
A ___ person called for you, but didn't leave a name.
In this context, 'certain' means a specific person that is not named directly.
Are you ___ that the train leaves at 5 PM?
'Certain' is used to ask if someone is completely sure about something.
There was a ___ amount of money missing from the box.
'Certain' here means a specific but unspecified amount.
I feel ___ that she will do well on the exam.
'Feel certain' is a common phrase meaning to feel completely sure.
For ___ reasons, I can't tell you more.
'Certain reasons' refers to specific reasons that are not being mentioned.
Write a sentence using 'certain' to mean 'completely sure'.
Well written! Good try! Check the sample answer below.
Sample answer
I am certain that the sun will rise tomorrow.
Write a sentence using 'certain' to refer to a specific but unnamed person.
Well written! Good try! Check the sample answer below.
Sample answer
A certain person told me a secret.
Complete the sentence: 'I am not certain if...' then add your own ending.
Well written! Good try! Check the sample answer below.
Sample answer
I am not certain if it will rain today.
Why did Sarah bring an umbrella?
Read this passage:
Sarah wanted to go to the park, but she wasn't certain about the weather. It looked like it might rain. She decided to bring an umbrella, just in case.
Why did Sarah bring an umbrella?
The passage states she 'wasn't certain about the weather' and decided to bring an umbrella 'just in case'.
The passage states she 'wasn't certain about the weather' and decided to bring an umbrella 'just in case'.
What does 'certain restaurant' mean in this passage?
Read this passage:
My friend told me about a certain restaurant that serves delicious pizza. He said it's a small place, but very popular. I want to try it next weekend.
What does 'certain restaurant' mean in this passage?
The definition of 'certain' states it can refer to 'a specific person or thing that is not named directly'.
The definition of 'certain' states it can refer to 'a specific person or thing that is not named directly'.
How did Tom feel about locking the door?
Read this passage:
Tom was certain he had locked the door, but he still checked it one more time before leaving for work. He always does this to be extra careful.
How did Tom feel about locking the door?
The passage says 'Tom was certain he had locked the door', indicating he was completely sure.
The passage says 'Tom was certain he had locked the door', indicating he was completely sure.
This sentence expresses strong belief or confidence that someone will arrive.
This sentence uses 'certain' to refer to a specific, but unnamed, man.
This question asks if someone is completely sure about their response.
I'm not ______ if I locked the door or not, I should go back and check.
The word 'certain' fits best here to express a lack of complete surety, which is often interchangeable with 'sure' in this context.
The manager said a ______ employee would be assigned to help with the new project.
In this context, 'certain' refers to a specific, unnamed employee, fitting the second part of the definition.
Are you absolutely ______ that you saw him at the party last night?
Here, 'certain' emphasizes being completely sure without doubts, which aligns with the question's intent.
There was a ______ amount of tension in the room before the announcement.
'Certain' can be used here to imply an unspecified but acknowledged amount of tension.
Despite the evidence, he wasn't entirely ______ of their guilt.
This sentence uses 'certain' to express a lack of absolute conviction regarding guilt.
For ______ reasons, I can't disclose the details of the agreement.
'Certain reasons' implies there are specific reasons but they are not being named directly, matching the definition.
The speaker is expressing strong conviction.
The speaker is referring to an unspecified but identifiable quality.
The speaker is asking for confirmation.
Read this aloud:
I am certain we can finish this project on time.
Focus: certain
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Read this aloud:
There was a certain problem that needed to be addressed.
Focus: certain problem
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Read this aloud:
Please be certain to lock the door when you leave.
Focus: be certain
あなたの回答：
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Imagine you are planning a surprise party for a friend. Write a short paragraph explaining why you need to be certain about the details to keep it a secret.
Well written! Good try! Check the sample answer below.
Sample answer
I need to be absolutely certain about all the details for my friend's surprise party. If I'm not careful, someone might accidentally reveal the secret, and that would ruin everything! I need to plan where it will be, who to invite, and what food to have, making certain every step is confidential.
Describe a situation where you felt certain about a decision you made, even if others disagreed. What made you so sure?
Well written! Good try! Check the sample answer below.
Sample answer
Last year, I felt very certain about choosing to study abroad, even though some of my friends thought it was a risky idea. I had researched the program extensively and felt a strong connection to the university. My gut feeling, combined with the clear benefits, made me absolutely sure it was the right decision for me.
Write a short email to a colleague about a project. In your email, mention a 'certain' aspect of the project that you need clarification on, without explicitly naming it.
Well written! Good try! Check the sample answer below.
Sample answer
Subject: Project Update Hi [Colleague's Name], I hope you're having a good week. I was reviewing the project plan and had a quick question regarding a certain aspect of the timeline. Could we briefly discuss this when you have a moment? I just want to be certain we're all on the same page. Thanks, [Your Name]
Why was Maria disappointed at the airport?
Read this passage:
Maria was excited for her vacation. She had checked her flight details multiple times and was certain of her departure time. However, when she arrived at the airport, there was a delay due to a certain technical issue. She was disappointed but understood that safety was the priority.
Why was Maria disappointed at the airport?
The passage states, 'when she arrived at the airport, there was a delay due to a certain technical issue. She was disappointed'.
The passage states, 'when she arrived at the airport, there was a delay due to a certain technical issue. She was disappointed'.
What was the scientist trying to achieve by repeating the experiment?
Read this passage:
The scientist conducted the experiment with great care, making sure every variable was controlled. She wanted to be absolutely certain of her results before publishing her findings. After repeating the experiment several times, she became certain that her hypothesis was correct.
What was the scientist trying to achieve by repeating the experiment?
The passage says, 'She wanted to be absolutely certain of her results before publishing her findings. After repeating the experiment several times, she became certain that her hypothesis was correct.' This implies she repeated it to be sure of the results.
The passage says, 'She wanted to be absolutely certain of her results before publishing her findings. After repeating the experiment several times, she became certain that her hypothesis was correct.' This implies she repeated it to be sure of the results.
Why did Tom use the word 'certain' when talking about the concert?
Read this passage:
Tom was discussing his plans for the weekend with his friends. He mentioned that he would be attending a certain concert, but he didn't want to reveal the band's name yet. His friends were curious, but Tom wanted to keep it a surprise for them to discover on their own.
Why did Tom use the word 'certain' when talking about the concert?
The passage states, 'He mentioned that he would be attending a certain concert, but he didn't want to reveal the band's name yet. His friends were curious, but Tom wanted to keep it a surprise'.
The passage states, 'He mentioned that he would be attending a certain concert, but he didn't want to reveal the band's name yet. His friends were curious, but Tom wanted to keep it a surprise'.
This is a common question to ask if someone is sure about something.
Here, 'certain' refers to an unspecified person.
This sentence expresses doubt about an event.
The detective was absolutely ___ that he had found the correct suspect.
In this context, 'certain' means completely sure, which fits the sentence about the detective's confidence.
There are ___ measures we need to take to ensure the project's success.
'Certain' can refer to a particular or specific thing, even if not named directly. 'Specific' is the closest option here.
After reviewing the evidence, she became ___ of her decision.
Here, 'certain' implies she gained full confidence in her decision after reviewing the evidence.
He mentioned that ___ individual had expressed interest in the position, but he didn't give a name.
This usage of 'certain' refers to a particular person without naming them, which aligns with 'a specific individual'.
Are you ___ that you locked the front door before leaving?
This question is asking if the person is completely sure about an action they performed.
For ___ reasons, the meeting has been postponed until next week.
In this context, 'certain' implies there are specific reasons, even if they are not being disclosed or are not known to the speaker.
After reviewing all the evidence, the detective felt ___ about the suspect's guilt.
The context implies the detective no longer has doubts, meaning they are sure or 'certain'.
There are ___ measures we can take to prevent this from happening again.
'Certain' in this context refers to specific, though not explicitly named, measures.
Despite the challenges, she was ___ that she would succeed in her new venture.
The phrase 'despite the challenges' suggests confidence, making 'certain' the appropriate choice for being sure of success.
If you are 'certain' about something, it means you have some doubts about it.
Being 'certain' means being completely sure of something, without any doubts.
When someone says 'a certain person told me', they are usually identifying that person by name.
Using 'certain' in this way refers to a specific person without naming them directly.
It is appropriate to use 'certain' when you are absolutely convinced of a fact.
The primary definition of 'certain' is to be completely sure of something without any doubts.
The speaker is unsure about the meeting time.
The speaker is describing a quality of someone's writing.
The speaker is asking for confirmation about documents.
Read this aloud:
I am certain that with hard work, we can achieve our goals.
Focus: certain, achieve
あなたの回答：
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Read this aloud:
There are certain aspects of the project that require immediate attention.
Focus: certain, aspects, immediate
あなたの回答：
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Read this aloud:
Can you be certain that the data is accurate before we present it?
Focus: certain, accurate, present
あなたの回答：
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Imagine you are planning a surprise party for a friend. Write a short paragraph describing why you need to be certain about their availability and preferences to make it a success.
Well written! Good try! Check the sample answer below.
Sample answer
Planning a surprise party requires me to be absolutely certain about my friend's availability. I need to discreetly confirm their schedule without revealing the surprise, perhaps by asking about their plans for a 'casual get-together'. Furthermore, I must be certain about their preferences for food, music, and guests to ensure the party is a true success and they genuinely enjoy it. Without this certainty, the surprise could fall flat.
You are writing an email to a colleague to confirm a meeting. Use the word "certain" in your email to express that you are completely sure about the details. Write the main body of the email.
Well written! Good try! Check the sample answer below.
Sample answer
I'm just writing to confirm our meeting scheduled for Tuesday at 10 AM in conference room B. I am certain that all the necessary documents for the presentation have been prepared and are ready for distribution. Please let me know if you have any questions or if there are any specific agenda items you would like to add. I'm looking forward to our discussion.
Describe a situation where you had to be certain about a decision before taking action. What were the potential consequences if you weren't certain?
Well written! Good try! Check the sample answer below.
Sample answer
I once had to be certain about which university course to choose after finishing high school. The potential consequences of not being certain were significant: I could have ended up studying a subject I disliked, wasting time and money, and possibly even having to change courses later, which would have been a setback. I spent a lot of time researching and talking to people in different fields to ensure I was making the right decision for my future.
What did the detective need to be absolutely certain?
Read this passage:
The detective looked at the scattered clues. He wasn't certain who the culprit was yet, but he had a strong suspicion. He needed to find one more piece of evidence to be absolutely certain before making an arrest. This final piece would tie everything together and remove all doubt.
What did the detective need to be absolutely certain?
The passage states, 'He needed to find one more piece of evidence to be absolutely certain before making an arrest.'
The passage states, 'He needed to find one more piece of evidence to be absolutely certain before making an arrest.'
Why was it important for the scientist to be certain about her measurements?
Read this passage:
During the experiment, the scientist had to be certain about the measurements. Even a slight error could skew the results and lead to incorrect conclusions. She double-checked all her readings, knowing that precision was paramount for the validity of her research. There were certain parameters that could not be compromised.
Why was it important for the scientist to be certain about her measurements?
The passage explains, 'Even a slight error could skew the results and lead to incorrect conclusions.'
The passage explains, 'Even a slight error could skew the results and lead to incorrect conclusions.'
What did the travel agent advise the customer to be certain about?
Read this passage:
The travel agent told me that certain airlines have restrictions on the size of carry-on luggage. It's not the same for every company, so it's always best to check their specific policies before you fly. She advised me to be certain about the dimensions allowed to avoid any issues at the airport.
What did the travel agent advise the customer to be certain about?
The passage states, 'She advised me to be certain about the dimensions allowed to avoid any issues at the airport.'
The passage states, 'She advised me to be certain about the dimensions allowed to avoid any issues at the airport.'
This sentence structure clearly conveys the manager's conviction about the new strategy's success.
This forms a direct question asking for confirmation of an action, emphasizing the 'certain' aspect.
This sentence uses 'certain' to refer to an unspecified but known individual, a common usage at this level.
The CEO was ___ that the new marketing strategy would yield significant profits, despite some internal skepticism.
The context implies the CEO's strong belief in the strategy's success, which aligns with 'certain' meaning 'completely sure'.
There's a ___ individual within the organization who seems to be leaking confidential information, but we haven't identified them yet.
In this context, 'certain' is used to refer to a specific, but unnamed, individual, fitting the definition's second meaning.
After reviewing all the evidence, the jury felt ___ beyond a reasonable doubt that the defendant was guilty.
The phrase 'beyond a reasonable doubt' strongly indicates a state of being completely sure, making 'certain' the correct choice.
If you are 'certain' about something, you have some reservations or doubts about it.
To be 'certain' means to be completely sure without any doubts, so having reservations contradicts this meaning.
Using 'a certain person' implies that the person's identity is known and explicitly stated.
When 'certain' refers to a person or thing not named directly, it implies the identity is not explicitly stated, even if it is known to the speaker.
When an outcome is 'certain', it means there's a very high probability of it happening, but not absolute assurance.
If an outcome is 'certain', it means it is absolutely assured and without doubt, not just highly probable.
Focus on the nuance of 'uncertain' in a legal context.
Pay attention to how 'certain' is used to describe an intangible quality.
Notice the strong conviction conveyed by 'certain' in a scientific context.
Read this aloud:
It is certain that the new economic policies will have far-reaching implications for global trade.
Focus: certain, implications
あなたの回答：
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Read this aloud:
While I am certain about the overall strategy, I am less certain about the specific tactics we should employ.
Focus: certain, specific, tactics
あなたの回答：
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Read this aloud:
There's a certain elegance to her prose that makes her a truly remarkable writer.
Focus: certain, elegance, prose, remarkable
あなたの回答：
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You are certain that a new policy implemented at your workplace will have significant negative consequences. Write an email to your manager, expressing your concerns and suggesting alternative approaches. Use formal language and provide clear justifications for your arguments.
Well written! Good try! Check the sample answer below.
Sample answer
Dear [Manager's Name], I am writing to express my certain concerns regarding the recently implemented [New Policy Name]. While I understand the intention behind this policy, I am certain it will lead to several negative consequences, particularly in terms of [specific area, e.g., team morale, productivity, customer satisfaction]. For instance, [provide a specific example and elaborate]. I believe an alternative approach, such as [suggest an alternative], could mitigate these risks while still achieving the desired outcomes of [original goal of policy]. This approach would allow us to [explain benefits of your suggestion]. I am certain that a thorough re-evaluation of this policy, considering these potential issues, would be beneficial. I am available to discuss this further at your convenience. Sincerely, [Your Name]
Imagine you are a legal professional drafting a clause for a contract. This clause needs to clearly state that a certain outcome is guaranteed, without any ambiguity. Write this clause, ensuring it is legally sound and leaves no room for doubt.
Well written! Good try! Check the sample answer below.
Sample answer
Clause 3.1: Outcome Guarantee. The Supplier hereby provides an absolute and certain guarantee that the deliverables specified in Appendix A shall achieve [specific measurable outcome, e.g., 'a minimum operational uptime of 99.9%'] within [specific timeframe, e.g., 'three months of deployment']. This guarantee is unconditional and any failure to meet this certain standard shall constitute a material breach of this Agreement, entitling the Client to exercise all remedies available at law or in equity, including, but not limited to, [specific remedies, e.g., 'liquidated damages as stipulated in Clause 7.2']. This provision shall remain in full force and effect notwithstanding any other term or condition to the contrary contained herein.
You are a historical biographer, and you've uncovered new evidence that casts doubt on a long-held belief about a certain historical figure. Write a paragraph for your book introducing this new information, carefully explaining why it makes you less certain about the traditional narrative.
Well written! Good try! Check the sample answer below.
Sample answer
For decades, it has been a certain truth that [Historical Figure] was solely responsible for [Specific Event]. However, recent archival discoveries, specifically [describe the new evidence briefly, e.g., 'a previously uncatalogued series of private correspondence between key political players'], compel a re-evaluation of this long-held certainty. These documents suggest a more complex interplay of factors and influences, leading me to be less certain about the singular culpability attributed to [Historical Figure]. Indeed, the evidence indicates that [explain what the evidence suggests, e.g., 'the decision was a collective one, influenced by a coalition of advisors, with [Historical Figure] playing a more conciliatory rather than authoritarian role']. This new information fundamentally challenges the traditional narrative, revealing a nuanced reality that demands our careful consideration.
What is the primary reason analysts are hesitant to offer certain predictions?
Read this passage:
While certain economic indicators suggest a period of sustained growth, analysts remain cautious. The volatility of global markets, coupled with unpredictable geopolitical events, creates an environment where even the most seasoned experts are hesitant to offer certain predictions. This inherent uncertainty underscores the complexity of modern economic forecasting, where a confluence of factors can swiftly alter even the most carefully constructed models. Therefore, despite promising signs, a certain degree of prudence is warranted in investment strategies.
What is the primary reason analysts are hesitant to offer certain predictions?
The passage explicitly states that 'The volatility of global markets, coupled with unpredictable geopolitical events, creates an environment where even the most seasoned experts are hesitant to offer certain predictions.'
The passage explicitly states that 'The volatility of global markets, coupled with unpredictable geopolitical events, creates an environment where even the most seasoned experts are hesitant to offer certain predictions.'
What is the main point of contention in the literary debate described?
Read this passage:
In certain literary circles, there is a burgeoning debate regarding the efficacy of artificial intelligence in generating creative works. While some argue that AI can only mimic existing styles, and therefore cannot produce truly original content, others are certain that with advanced algorithms and deep learning, AI will soon be indistinguishable from human authors, capable of crafting narratives with genuine emotional depth. This divergence of opinion highlights a fundamental question about the nature of creativity itself: is it an exclusively human trait, or can it be synthesized by machines?
What is the main point of contention in the literary debate described?
The passage states that the debate is about whether AI 'can only mimic existing styles' or if it will be 'capable of crafting narratives with genuine emotional depth,' directly addressing the originality and emotional profundity of AI-generated works.
The passage states that the debate is about whether AI 'can only mimic existing styles' or if it will be 'capable of crafting narratives with genuine emotional depth,' directly addressing the originality and emotional profundity of AI-generated works.
What did the archaeological team learn from their excavation?
Read this passage:
The archaeological team was certain they had located the ancient burial site, based on satellite imagery and historical maps. However, upon excavation, they discovered a completely different structure, dating to a much later period. This unexpected finding necessitated a complete revision of their initial hypotheses. It served as a stark reminder that even with seemingly certain evidence, the ground truth can often reveal unforeseen complexities, requiring humility and adaptability in scientific inquiry. A certain degree of flexibility is always crucial.
What did the archaeological team learn from their excavation?
The passage states, 'This unexpected finding necessitated a complete revision of their initial hypotheses. It served as a stark reminder that even with seemingly certain evidence, the ground truth can often reveal unforeseen complexities, requiring humility and adaptability in scientific inquiry.'
The passage states, 'This unexpected finding necessitated a complete revision of their initial hypotheses. It served as a stark reminder that even with seemingly certain evidence, the ground truth can often reveal unforeseen complexities, requiring humility and adaptability in scientific inquiry.'
This sentence structure emphasizes a contrast where, despite contradictory evidence, her belief in his innocence stayed firm. 'Certain' here denotes a strong conviction without doubt.
This sentence uses 'certain' to refer to specific, though not explicitly named, protocols. The structure is common for indicating a set of rules or guidelines.
Here, 'certain' describes an unspecified but distinct quality of trepidation. The phrase 'with a certain [emotion/quality]' is a sophisticated way to express a nuanced feeling.
The complex algorithms, while seemingly infallible, contained a fundamental flaw that rendered their predictions anything but _______.
The context implies that the predictions were not reliable, so the opposite of reliable (unequivocal - leaving no doubt) would be correct for 'anything but'.
Despite the compelling evidence presented by the prosecution, the defense attorney managed to sow seeds of doubt, ensuring that the verdict remained far from _______.
The defense attorney aimed to create doubt, meaning the verdict was not definitive. 'Conclusive' means settling an issue finally, which fits the opposite of the attorney's goal.
The philosopher argued that true wisdom lies not in the accumulation of _______ truths, but in the constant questioning of all perceived realities.
The phrase 'constant questioning of all perceived realities' suggests that true wisdom is not about holding onto truths that cannot be questioned. 'Irrefutable' means impossible to deny or disprove.
The quantum physicist posited that the position of a subatomic particle is never _______ until it is observed, thus challenging classical notions of objective reality.
The statement contrasts with 'classical notions of objective reality' by stating that the position is not fixed until observed. 'Definitive' means conclusive and authoritative.
The ancient prophecy, shrouded in cryptic symbolism, hinted at a _______ individual destined to unite the fractured kingdoms, though their identity remained a mystery.
The prophecy refers to 'a certain individual,' implying a unique or particular person without naming them directly. 'Singular' fits this meaning of being unique or remarkable.
The renowned art critic, with a characteristic air of condescension, declared that _______ contemporary artists consistently fail to grasp the nuances of true artistic expression.
The critic is referring to a specific group of artists without naming them, which aligns with the second definition of 'certain'.
The renowned physicist articulated a theory so groundbreaking that its implications were far from ________, requiring extensive peer review to ascertain its validity.
The context implies that the theory's implications were not immediately clear or established, meaning they were 'far from certain'. 'Dubious' would mean doubtful, 'contingent' means dependent on something else, and 'ambiguous' means open to more than one interpretation, none fitting as precisely as 'certain'.
Despite the compelling circumstantial evidence, the defense attorney argued that the prosecution's case was not ________ beyond a reasonable doubt, thus precluding a conviction.
In legal contexts, 'certain beyond a reasonable doubt' is a common phrase to indicate the high standard of proof required for a conviction. While 'conclusive' and 'incontrovertible' are similar, 'certain' fits the legal idiom perfectly here. 'Axiomatic' means self-evident, which is not the case for a legal argument.
The philosopher posited that while empirical observations can lead to probable conclusions, absolute knowledge of the universe remains elusive and never entirely ________.
The sentence discusses the elusiveness of 'absolute knowledge,' implying a lack of complete sureness or conviction. 'Certain' directly addresses this nuance, referring to a state of being completely sure. 'Definite,' 'assured,' and 'guaranteed' are synonyms but 'certain' is the most philosophical and fitting in this context about knowledge.
To be 'certain' of a proposition in an academic debate implies that one holds an unwavering belief based on subjective conviction, rather than objective evidence.
While 'certain' can involve strong belief, in an academic debate, being 'certain' of a proposition usually implies having strong, objective evidence or logical reasoning to support it, not merely subjective conviction. Subjective conviction without evidence is often dismissed as mere opinion.
The phrase 'a certain je ne sais quoi' exemplifies the usage of 'certain' to denote a specific, yet unnamed, quality that is difficult to articulate.
The phrase 'a certain je ne sais quoi' literally means 'a certain I don't know what', perfectly illustrating 'certain' referring to a specific, unnamed quality or thing. The original definition provided includes this specific usage.
If a scientific hypothesis is deemed 'certain', it signifies that it has been conclusively proven and is no longer subject to further empirical testing or falsification.
In scientific methodology, very few hypotheses are ever considered 'certain' in an absolute sense. Even well-established theories are open to refinement or re-evaluation with new evidence. The term 'certain' in science usually refers to a high degree of confidence, not an absolute, unchangeable truth that is beyond further testing.
The speaker is discussing global events and their future impact.
Listen for the economists' perspective on economic recovery.
The discussion revolves around an artist's upcoming exhibition.
Read this aloud:
It is virtually certain that the unprecedented technological advancements will engender a paradigm shift in societal structures.
Focus: virtually certain, unprecedented, engender, paradigm shift, societal structures
あなたの回答：
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Read this aloud:
Certain foundational principles, though often overlooked, are indispensable for fostering a robust and equitable democratic system.
Focus: certain foundational, indispensable, fostering, robust, equitable democratic
あなたの回答：
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Read this aloud:
While the outcome remains somewhat ambiguous, it's almost certain that the forthcoming summit will address certain critical issues pertaining to climate change mitigation.
Focus: somewhat ambiguous, almost certain, forthcoming summit, critical issues, climate change mitigation
あなたの回答：
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Compose a paragraph discussing the philosophical implications of absolute certainty in human knowledge. Consider the role of skepticism and empirical evidence.
Well written! Good try! Check the sample answer below.
Sample answer
The pursuit of absolute certainty in human knowledge has been a cornerstone of epistemology, prompting debates that span centuries. Philosophers often grapple with the elusive nature of indubitable truths, recognizing that what one perceives as certain can often be deconstructed through rigorous skeptical inquiry. The role of empirical evidence, while crucial for scientific understanding, is frequently viewed through a lens of probabilistic inference rather than definitive certainty, as future observations might always overturn existing paradigms. This inherent fallibility, or perhaps humility, in our cognitive processes suggests that certainty, in its most unassailable form, might remain an asymptotic ideal rather than an attainable reality, fostering a continuous re-evaluation of our phenomenological experiences.
In a formal essay, analyze how the concept of 'certain' (as in 'a certain person' or 'a certain event') is utilized in legal discourse to maintain ambiguity while still referring to a specific, but unnamed, entity. Provide examples of legal contexts where this linguistic strategy is employed.
Well written! Good try! Check the sample answer below.
Sample answer
In legal parlance, the deployment of 'certain' to denote a specific, yet unnamed, person or event serves a crucial function in maintaining a delicate balance between specificity and ambiguity. This linguistic strategy is frequently employed in contexts where revealing an identity or precise detail would compromise privacy, ongoing investigations, or the integrity of legal proceedings. For instance, in witness protection programs or cases involving minors, references to 'a certain individual' or 'a certain incident' allow for discussion without direct identification. Furthermore, legal documents may use this phrasing to refer to precedents or statutes that are implicitly understood within the legal community without needing explicit restatement. Such usage underscores a nuanced jurisprudence where precision is paramount, yet practical considerations often necessitate a degree of calculated referential obliqueness to protect vested interests or ensure operational efficacy.
Craft a short story (approx. 200 words) where a character's unwavering certainty about a future event leads to an unforeseen and ironic outcome. Explore the psychological impact of this conviction.
Well written! Good try! Check the sample answer below.
Sample answer
Eleanor was certain. Utterly, unequivocally certain that the ancient, weather-beaten compass she inherited would guide her to the fabled 'Sunstone of Serenity' before the vernal equinox. Her conviction, born of generations of family legend and her own unshakeable belief in destiny, verged on hubris. She meticulously planned her expedition, dismissing all warnings about the treacherous mountain pass. Her psychological state was one of serene prescience; doubt was a foreign concept. Yet, as the equinox dawned, she found herself not amidst the gleaming Sunstone, but rather stranded at the foot of an entirely different peak, her compass spinning wildly, having been unknowingly magnetized by a rare ore deposit. The irony was palpable: her 'certainty' had led her astray, proving that conviction, however strong, is no guarantor of veracity. Disillusionment, a bitter companion, now accompanied her on the long journey home.
According to the passage, why do scientific theories typically avoid being labeled 'certain'?
Read this passage:
The scientific community often grapples with the concept of absolute certainty. While empirical data can lend significant weight to a hypothesis, the inherent probabilistic nature of scientific inquiry means that theories are rarely, if ever, deemed 'certain' in an immutable sense. Instead, they are accepted as the most robust explanations available, subject to revision in light of new evidence. This epistemological stance fosters a culture of continuous questioning and refinement, differentiating scientific understanding from dogmatic belief.
According to the passage, why do scientific theories typically avoid being labeled 'certain'?
The passage explicitly states that 'the inherent probabilistic nature of scientific inquiry means that theories are rarely, if ever, deemed 'certain' in an immutable sense' and that 'they are accepted as the most robust explanations available, subject to revision in light of new evidence.'
The passage explicitly states that 'the inherent probabilistic nature of scientific inquiry means that theories are rarely, if ever, deemed 'certain' in an immutable sense' and that 'they are accepted as the most robust explanations available, subject to revision in light of new evidence.'
What is the primary concern raised by the defense regarding the 'certain unnamed informant'?
Read this passage:
In a particularly complex legal case, the prosecution introduced evidence from 'a certain unnamed informant.' This tactic, while permissible under specific circumstances, immediately raised concerns among the defense team regarding due process and the right to confront accusers. The judge, in his discretion, allowed the testimony but emphasized the need for corroborating evidence, acknowledging the inherent difficulty in assessing the credibility of an anonymous source, no matter how 'certain' the prosecution was of their reliability.
What is the primary concern raised by the defense regarding the 'certain unnamed informant'?
The passage states that the use of 'a certain unnamed informant' 'immediately raised concerns among the defense team regarding due process and the right to confront accusers.'
The passage states that the use of 'a certain unnamed informant' 'immediately raised concerns among the defense team regarding due process and the right to confront accusers.'
According to existentialist philosophy, what is the implication of there being no 'certain' pre-ordained path?
Read this passage:
The existentialist philosophers posited that individuals are condemned to be free, and with that freedom comes the burden of radical responsibility. There is no pre-ordained destiny or divine plan providing a 'certain' path; instead, humans must create their own meaning and values. This rejection of inherent purpose can lead to angst but also empowers individuals to forge authentic lives, unconstrained by external dictates of certainty.
According to existentialist philosophy, what is the implication of there being no 'certain' pre-ordained path?
The passage explains that 'There is no pre-ordained destiny or divine plan providing a 'certain' path; instead, humans must create their own meaning and values. This rejection of inherent purpose... empowers individuals to forge authentic lives.'
The passage explains that 'There is no pre-ordained destiny or divine plan providing a 'certain' path; instead, humans must create their own meaning and values. This rejection of inherent purpose... empowers individuals to forge authentic lives.'
/ 144 correct
Perfect score!
Understand the two main meanings
The word certain has two primary uses. One is about being sure, and the other is about a specific but unnamed person or thing.
Practice with 'sure'
Create sentences where certain means sure. For example, 'I am certain that the answer is correct.' or 'Are you certain about that?'
Practice with 'specific but unnamed'
Create sentences where certain refers to something specific but not directly named. For example, 'A certain person told me about it.' or 'There are certain rules you must follow.'
Identify synonyms for 'sure'
Think of words that mean the same as certain when it's used as 'sure', like confident, positive, or convinced.
例文
I am certain that I left my keys on the kitchen table.
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C1決まった手順からあえて外れて、ランダムまたは非線形な方法をとること。技術的な分析などでよく使われるよ。
abcenthood
C1The state, condition, or period of being absent, particularly in a role where one's presence is expected or required. It often refers to a prolonged or systemic lack of participation in a social, parental, or professional capacity.
abcitless
C1物事の根本的な部分が欠けていて、計画や考えが成り立たない状態のことです。
abcognacy
C1The state of being unaware or lacking knowledge about a specific subject, situation, or fact. It describes a condition of non-recognition or a gap in cognitive awareness, often used in technical or specialized academic contexts.
abdocion
C1中心軸から離れていく動きや論理のこと。技術的な文脈で、何かが外側に向かって引っ張られる様子を表します。
abdocly
C1Abdoclyは、隠れていたり奥まっていたりして、すぐには目に見えない状態を指します。
aberration
B2A departure from what is normal, usual, or expected, typically one that is unwelcome. It refers to a temporary change or a deviation from the standard path or rule.
abfacible
C1To systematically strip or remove the external surface or facade of a structure or material for analysis, restoration, or cleaning. It specifically refers to the technical act of uncovering underlying layers while preserving the integrity of the core material.
abfactency
C1事実や客観的な現実から完全に切り離されている状態のことだよ。論理的には筋が通っていても、現実とは全く関係のない議論などを指す時に使うね。
