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B1 noun #24 最常用 13分钟阅读

digit

前24

开始练习例句笔记与提示 digit 30秒了解

解析 digit in your Level:

At the A1 level, you should know that 'digit' is a word for numbers from 0 to 9. Think of it like this: the number 10 is made of two parts, '1' and '0'. Each part is a digit. You also have ten 'digits' on your hands—these are your fingers! It is a simple word to help you talk about phone numbers or counting on your fingers. For example, 'My phone number has ten digits.' or 'I have five digits on each hand.' It is not a word you need to use every day, but it is helpful when you are learning about numbers in school or talking about your body. Just remember: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 are all digits. If you have a PIN for your bank card, it usually has four digits. This is a very basic way to use the word. You don't need to worry about the hard math meanings yet. Just think of digits as the building blocks of bigger numbers. Most people will understand if you say 'finger,' but 'digit' is the more 'grown-up' or 'school' word for it. When you see a digital clock, it uses digits to show the time. That is why it is called a 'digital' clock! It is a fun word because it connects your hands to your math homework.

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At the A2 level, you can start using 'digit' to describe things more accurately. You might use it when talking about security codes, like a 'four-digit PIN' for your phone or credit card. You should also understand that 'digit' can mean a finger or a toe in a more formal way. If you are reading a simple story about an animal, it might say the animal has 'sharp digits' instead of 'sharp fingers.' This level is about recognizing the word in different places. You will see it on websites when you sign up for an account and it asks for a '6-digit password.' You might also hear it in a doctor's office if they are being very professional. A key thing to learn at A2 is that a number like 100 has three digits, while the number 5 has only one digit. This helps you describe how big a number is. You can also use it to talk about temperatures. If it is very cold, you can say the temperature is in the 'single digits' (like 5 degrees). This makes your English sound more natural and advanced. It is a useful word for basic technology and health topics. You are moving beyond just 'numbers' and 'fingers' to a word that covers both in a slightly more formal way.

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At the B1 level, you should be comfortable using 'digit' in both mathematical and anatomical contexts. You should understand compound adjectives like 'ten-digit' or 'three-digit.' For example, you can say, 'I need to enter a ten-digit phone number.' You should also be aware of common phrases like 'double-digit growth' or 'single-digit inflation.' These are very common in news reports and business discussions. At this level, you are expected to know the difference between a 'digit' and a 'number.' A digit is the symbol (0-9), while a number is the value. This distinction is important for clear communication. In medical or biological contexts, you should recognize 'digit' as the standard term for a finger or toe. If you are describing an injury or an animal's features, 'digit' adds a level of precision to your description. You might also encounter the word in technical instructions, such as 'round the result to the nearest two digits.' This shows you can follow more complex directions. B1 learners should also start to see the connection between 'digit' and 'digital,' understanding that digital technology is based on these individual numerical units. It's a versatile word that helps you bridge the gap between everyday conversation and more specialized topics like finance, health, and technology.

At the B2 level, you should have a nuanced understanding of 'digit' and be able to use it in professional and academic settings. You should be familiar with 'significant digits' in science and how they affect the precision of a measurement. In business, you should be able to discuss 'double-digit increases' in revenue or 'single-digit margins' with confidence. You should also understand the word's role in computing, specifically the 'binary digit' or 'bit,' and how it forms the basis of all digital data. Your use of the word in anatomical contexts should be precise; for instance, you might use it in a formal report or a detailed description of a biological process. You should also be aware of the hyphenation rules for compound adjectives involving digits. At this level, you should be able to distinguish between 'digit,' 'numeral,' and 'figure' based on the context. For example, you'd know that 'figure' is often used for salaries, while 'digit' is used for the components of a code. You should also be able to handle the word in more abstract ways, such as discussing the 'digital divide' or 'digitizing' records. Your vocabulary is becoming more specialized, and 'digit' is a key term that appears across many disciplines. You can use it to provide specific details and to sound more authoritative in your writing and speaking.

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At the C1 level, you should be able to use 'digit' with total precision and understand its most technical applications. This includes a deep understanding of 'significant digits' (or significant figures) in mathematical and scientific contexts, where the number of digits conveys the level of certainty in a measurement. You should also be comfortable with the word in the context of data structures and computer architecture, such as 'hexadecimal digits' or 'check digits' used in error detection. In professional writing, you can use 'digit' to describe complex trends, such as 'sustained double-digit growth over a decade,' and understand the economic implications of such phrases. Your anatomical usage should be flawless, potentially involving the specific numbering of digits (e.g., 'the third digit of the pelvic limb'). You should also be aware of the word's etymology and how its dual meaning (finger/number) reflects the history of human counting. At this level, you can appreciate the subtle differences in register, knowing exactly when 'digit' is preferable to 'finger' or 'numeral.' You might also encounter the word in legal or forensic contexts, such as 'digital forensics' or the description of 'digital impressions' (fingerprints). Your mastery of the word allows you to navigate highly specialized texts in fields like medicine, engineering, and economics without hesitation. You use 'digit' not just as a label, but as a tool for precise, high-level communication.

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At the C2 level, your understanding of 'digit' is exhaustive, encompassing its historical, technical, and metaphorical dimensions. You can discuss the evolution of numbering systems and how the 'digit' transitioned from a physical finger to an abstract symbol in various cultures. You are likely familiar with advanced mathematical concepts like 'digit sums' or 'leading-digit phenomena' (such as Benford's Law). In the realm of technology, you understand the philosophical and practical implications of 'digitization' on society and the 'digital' nature of information theory. Your use of the word in anatomical or evolutionary biology is highly sophisticated, perhaps discussing the 'pentadactyl limb' and the developmental genetics of 'digit patterning.' You can use the word in complex metaphors or literary contexts where the dual meaning of 'digit' might be used for wordplay or to highlight the connection between the human and the mechanical. You are also aware of rare or archaic uses of the word and can distinguish it from similar terms in any specialized field, from cryptography to orthopedics. At C2, 'digit' is a word you can manipulate with ease to express very specific, high-level ideas. You understand its role as a fundamental unit in both the biological and the informational worlds, and you can communicate these concepts with the nuance and clarity of a highly educated native speaker.

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开始练习例句笔记与提示

digit 30秒了解

A digit is a single numerical symbol from 0 to 9, used to build larger numbers like 10 or 500.
In a formal or medical context, a digit is also a finger or a toe on a human or animal.
The word is commonly used in phrases like 'four-digit PIN' or 'double-digit growth' to describe scale.
It is the root of the word 'digital,' connecting physical counting on fingers to modern computer data.

The word digit is a fascinating term in the English language because it bridges the gap between the physical world of our bodies and the abstract world of mathematics. At its most fundamental level, a digit is any of the individual symbols we use to write numbers in a specific system, most commonly the base-10 system we use every day. These symbols are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. When you look at a number like 452, you are looking at a three-digit number. Each individual component—the 4, the 5, and the 2—is a digit. This usage is ubiquitous in modern life, appearing in everything from telephone numbers and PIN codes to complex computer programming and financial accounting. However, the word has a second, equally important meaning that is deeply rooted in human anatomy. A digit is also a finger or a toe. This is not a coincidence; the reason we use a base-10 numbering system is almost certainly because humans have ten fingers, or ten digits, to count with. When a doctor refers to a 'distal digit,' they are talking about the tip of a finger or toe, not a mathematical value. Understanding this duality is key to mastering the word. You might use it when describing a security code to a bank teller or when explaining an injury to a medical professional. It is a word that feels both technical and organic, making it a staple of both scientific and everyday vocabulary.

Mathematical Context: In mathematics, a digit is a single symbol used alone or in combinations to represent numbers. For example, the number 10 is composed of two digits: '1' and '0'. This distinction is crucial because while 10 is a number, it is not a single digit.

The security system requires a six-digit passcode to grant access to the laboratory.

Anatomical Context: In biology and medicine, a digit refers to any of the terminal members of the limb, such as a finger or a toe. This term is used across various species, not just humans, to describe the end parts of paws, hands, or feet.

The veterinarian carefully examined the cat's injured digit to check for a broken bone.

The word is also frequently used in financial contexts to describe levels of income or profit. For instance, a 'six-figure salary' is sometimes referred to as a salary with six digits. This highlights the word's role in conveying scale and precision. In the world of technology, 'binary digits' (bits) are the smallest units of data, represented by 0 or 1. This technical application shows how the word has evolved from simple finger-counting to the foundation of the modern digital age. Whether you are talking about the 'digits' on your hand or the 'digits' in your bank account balance, the word always implies a discrete, countable unit that forms part of a larger whole. It is this sense of being a 'building block'—either of a number or of a limb—that defines the essence of the word.

Data and Computing: In computing, the term 'bit' is a contraction of 'binary digit.' It represents the most basic form of information, existing in one of two states: 0 or 1.

A single binary digit is the smallest piece of information a computer can process.

The athlete suffered a minor fracture in the third digit of her left foot during the marathon.

Please verify your identity by entering the last four digits of your social security number.

Using the word digit correctly depends heavily on the context, but the grammatical structures remain fairly consistent. When referring to numbers, 'digit' is almost always a countable noun. You will often see it preceded by a specific number to describe the length of a value, such as a 'four-digit PIN' or a 'ten-digit phone number.' In these cases, the number and the word 'digit' are often hyphenated when they act as an adjective modifying a noun. For example, 'I forgot my four-digit code' uses 'four-digit' as a compound adjective. If you are using it as a simple noun, you might say, 'The number 500 has three digits.' It is important to remember that 'digit' refers to the symbol itself, not the value. The number 7 is a one-digit number, and its only digit is 7. In anatomical contexts, 'digit' is used more formally than 'finger' or 'toe.' You might hear a surgeon say, 'We need to stabilize the injured digit,' whereas a friend would say, 'You hurt your finger.' This formal register makes it common in medical reports, scientific papers, and legal descriptions of injuries.

Compound Adjectives: When describing something by the number of digits it contains, use a hyphen. Examples include 'a five-digit zip code' or 'a two-digit increase.'

The lottery winner was thrilled to see a seven-digit figure in his bank account.

Specifying Position: We often specify which digit we are talking about by its position, such as 'the first digit' or 'the units digit.'

The first digit of the area code indicates the general geographic region.

Another common usage is in the phrase 'single digits,' 'double digits,' or 'triple digits.' These phrases are often used to describe temperatures, ages, or growth rates. For example, if the temperature is in the 'single digits,' it is very cold (between 1 and 9 degrees). If a company’s profits are growing in 'double digits,' they are growing by at least 10%. This is a very common way to express scale without giving an exact number. In more technical writing, you might encounter 'significant digits,' which refers to the digits in a measurement that carry meaning contributing to its precision. This is a staple of chemistry and physics. When writing about anatomy, you might number the digits, starting from the thumb (the first digit) to the pinky (the fifth digit). This precise numbering avoids confusion in medical records.

Describing Growth or Scale: Phrases like 'double-digit inflation' or 'single-digit unemployment' are common in economic news.

The company reported a double-digit increase in sales for the third consecutive quarter.

The patient complained of numbness in the fourth digit of his right hand.

When calculating the result, make sure to round to the nearest two digits.

You will encounter the word digit in a variety of specific environments, ranging from the highly technical to the surprisingly mundane. One of the most common places is in the world of finance and banking. When you call your bank's automated service, the voice will often ask you to 'enter the last four digits of your card number.' Here, the word is used for security and precision. Similarly, in economic reports, news anchors frequently discuss 'double-digit inflation' or 'single-digit interest rates.' These terms provide a quick, impactful way to describe the severity of economic trends. In a classroom setting, especially in mathematics or science, 'digit' is the standard term used to discuss the components of numbers. Teachers will talk about 'carrying a digit' during addition or 'rounding to the tenth digit.' This academic usage ensures that students distinguish between the symbol and the value it represents.

Banking and Security: Automated systems and security protocols rely heavily on the term to specify parts of long identification numbers.

For security purposes, please type the final three digits on the back of your credit card.

Medical and Veterinary Science: Professionals use 'digit' to refer to fingers and toes in a precise, clinical manner that avoids the ambiguity of common terms.

The X-ray revealed a hairline fracture in the proximal phalanx of the second digit.

In the medical field, you will hear 'digit' used by doctors, nurses, and physical therapists. When a patient has a condition like polydactyly (having extra fingers or toes), the medical notes will describe the 'extra digits.' This formal terminology is used to maintain a professional standard in documentation. You might also hear it in the context of animal biology. For example, a documentary narrator might explain how a panda has a 'pseudo-thumb,' which is actually an enlarged bone that functions like a sixth digit. In the world of technology and computing, 'digit' is the root of almost everything. While we usually say 'digital,' the underlying concept is always the 'bit' or binary digit. Engineers and programmers might discuss 'digitizing' analog signals, which means converting continuous information into discrete numerical digits. Finally, in pop culture and slang, especially in urban environments, you might hear someone ask for 'your digits,' meaning your phone number. While this is informal, it shows how deeply the word has penetrated everyday life.

Economics and News: News reports use 'digit' to simplify complex data into understandable categories of scale.

The national debt has reached a staggering thirteen-digit number.

The software can recognize handwritten digits with over 99% accuracy.

He lost use of his outer digits due to severe frostbite during the expedition.

One of the most frequent mistakes learners make is confusing the word digit with the word number. While they are related, they are not interchangeable. A digit is a single symbol (0-9), whereas a number is a mathematical value that can be represented by one or more digits. For example, 25 is a number, but it is not a digit; it is a two-digit number made up of the digits 2 and 5. If someone asks you for a 'one-digit number,' they are asking for a number between 0 and 9. Another common error occurs in the anatomical sense. Learners sometimes use 'digit' in casual conversation where 'finger' or 'toe' would be much more natural. Saying 'I hurt my digit' while playing basketball sounds very strange and overly clinical to native speakers. It is better to reserve 'digit' for medical, scientific, or technical contexts. In writing, a common mistake is forgetting the hyphen in compound adjectives. You should write 'a five-digit code,' not 'a five digit code.'

Digit vs. Number: A digit is a symbol; a number is the total value. '123' is one number, but it contains three digits.

Incorrect: The price of the car is a five-digit. (Missing the noun 'number' or 'figure').

Over-formalization: Avoid using 'digit' for fingers in social settings. It can make you sound like a robot or a textbook.

Natural: I burned my finger on the stove.
Awkward: I burned my digit on the stove.

Another mistake involves the pluralization of the word when referring to ranges. People sometimes say 'in the ten digits' when they mean 'in the tens' or 'in the double digits.' If a value is between 10 and 99, it is in the 'double digits.' If you say 'ten digits,' you are referring to a number in the billions (like 1,000,000,000). Misunderstanding 'significant digits' is also common in academic writing. It doesn't just mean 'important numbers'; it has a specific mathematical definition regarding precision. Finally, be careful with the slang usage. Asking 'Can I have your digits?' is very dated and might be seen as cheesy or ironic in modern English. It’s important to match the register of your speech to the situation. In a professional email about a software bug, 'digit' is perfect. In a text to a friend about a sore thumb, 'digit' is out of place.

Confusing 'Digit' with 'Figure': While often similar, 'figure' can also mean a shape or a person's body, whereas 'digit' is strictly a numeral or a finger/toe.

The accountant double-checked every digit in the spreadsheet to ensure the total was correct.

The child is learning to write each digit from zero to nine clearly.

A binary system uses only two digits: zero and one.

To truly master the word digit, it is helpful to compare it to its synonyms and near-synonyms. In the mathematical sense, 'numeral' and 'figure' are the closest relatives. A 'numeral' is a symbol or group of symbols that represents a number. While 'digit' specifically refers to the single symbols 0-9, 'numeral' can be broader, including Roman numerals like 'X' or 'V.' 'Figure' is often used in financial contexts, such as 'a six-figure salary.' In this case, 'figure' and 'digit' are almost interchangeable, but 'figure' can also refer to the total amount or a diagram. 'Integer' is another related word, but it refers to a whole number (like -5, 0, or 100), not the individual symbols used to write it. In the anatomical sense, the most common alternatives are 'finger' and 'toe.' These are the words you will use 99% of the time in daily life. 'Extremity' is a more formal term that refers to the entire hand or foot, or even the whole arm or leg, making it much broader than 'digit.'

Digit vs. Numeral: 'Digit' is specific to the base-10 symbols 0-9. 'Numeral' is a more general term for any symbol representing a number.

While 'V' is a Roman numeral, it is not considered a digit in our standard numbering system.

Digit vs. Finger/Toe: 'Digit' is the scientific umbrella term for both fingers and toes. Use 'finger' or 'toe' for specific, non-clinical communication.

The surgeon worked to reattach the severed digit after the industrial accident.

When discussing precision, you might use 'place' as in 'the decimal place.' For example, 'round to the second decimal place' is more common than 'round to the second digit after the decimal.' In the context of data, 'character' is a broader term that includes digits, letters, and punctuation marks. If a password requires 'eight characters,' it could be all letters, but if it requires 'eight digits,' it must be all numbers. Understanding these nuances helps you choose the most precise word for your needs. If you are writing a technical manual, 'digit' is likely the best choice. If you are writing a poem about a child's hands, 'fingers' would be much more evocative and appropriate. By comparing 'digit' to these alternatives, you can see how it occupies a unique space that is both mathematically precise and biologically descriptive.

Digit vs. Character: A 'character' can be a letter (A, B, C) or a symbol (@, #), while a 'digit' is strictly a number (0-9).

The password must contain at least one uppercase letter and one numeric digit.

The value of Pi is often rounded to the first five digits for simplicity.

The primate used its long digits to extract insects from the bark of the tree.

How Formal Is It?

正式

中性

非正式

Child friendly

俚语

趣味小知识

The reason we use a base-10 number system is almost certainly because we have ten digits (fingers) to count with. If we had eight fingers, we might use a base-8 system!

发音指南

UK /ˈdɪdʒ.ɪt/

US /ˈdɪdʒ.ɪt/

The stress is on the first syllable: DI-git.

押韵词

widget midget fidget rigid frigid pivot limit visit

常见错误

Pronouncing the 'g' as a hard 'g' (like 'dig') instead of a soft 'j' sound.
Over-emphasizing the second syllable.
Confusing it with 'dig it' (two separate words).
Adding an extra 'i' sound at the end.
Failing to pronounce the final 't' clearly.

难度评级

阅读 3/5

Easy to recognize in context, but requires knowing both meanings.

写作 4/5

Requires correct hyphenation in compound adjectives.

口语 3/5

Simple pronunciation, but avoid using the anatomical sense in casual talk.

听力 3/5

Common in automated phone systems and news reports.

接下来学什么

前置知识

number finger toe count code

接下来学习

digital numeral integer decimal binary

高级

significant figures hexadecimal polydactyly ontogeny Benford's Law

需要掌握的语法

Hyphenating Compound Adjectives

A 'five-digit' number requires a hyphen because it modifies the noun 'number'.

Pluralization of Countable Nouns

One digit, two digits. Always use the plural when referring to more than one.

Using 'the' with Specific Positions

Always use 'the' when specifying a position: 'the first digit,' 'the last digit'.

Subject-Verb Agreement

The digits *are* (not is) clearly visible on the screen.

Prepositions with Ranges

We use 'in' for ranges: 'The temperature is *in* the single digits.'

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按水平分级的例句

The number 7 is a single digit.

Le chiffre 7 est un chiffre unique.

A1 level uses 'digit' to mean a single number.

I have five digits on my right hand.

J'ai cinq doigts sur ma main droite.

Here, 'digit' is a formal word for finger.

A phone number has many digits.

Un numéro de téléphone comporte de nombreux chiffres.

Plural 'digits' refers to the symbols in a sequence.

The clock shows the digits 12:00.

L'horloge affiche les chiffres 12:00.

Digital clocks use digits to show time.

Can you write the digit 8?

Peux-tu écrire le chiffre 8 ?

Asking to write a specific symbol.

There are ten digits: 0 to 9.

Il y a dix chiffres : de 0 à 9.

Defining the set of base-10 digits.

My PIN has four digits.

Mon code PIN a quatre chiffres.

Common usage for security codes.

Count the digits on your toes.

Compte les doigts de tes pieds.

Using 'digit' for toes.

Please enter a six-digit password.

Veuillez saisir un mot de passe à six chiffres.

Compound adjective 'six-digit' is hyphenated.

The temperature is in the single digits today.

La température est à un seul chiffre aujourd'hui.

Phrase 'single digits' means between 1 and 9.

The cat has an extra digit on its paw.

Le chat a un doigt supplémentaire sur sa patte.

Formal use for animal anatomy.

The first digit of the code is 5.

Le premier chiffre du code est le 5.

Specifying position in a sequence.

Is that a two-digit number?

Est-ce un nombre à deux chiffres ?

Describing the length of a number.

He pointed with his index digit.

Il a montré du doigt avec son index.

Slightly formal way to say index finger.

The total has five digits.

Le total comporte cinq chiffres.

Counting the components of a value.

Check the last digit carefully.

Vérifiez attentivement le dernier chiffre.

Focusing on a specific part of a number.

The company saw double-digit growth this year.

L'entreprise a connu une croissance à deux chiffres cette année.

'Double-digit' implies a percentage of 10% or more.

The doctor examined the injured digit for nerve damage.

Le médecin a examiné le doigt blessé pour vérifier s'il y avait des lésions nerveuses.

Standard medical terminology.

A binary digit can only be 0 or 1.

Un chiffre binaire ne peut être que 0 ou 1.

Introduction to computing terms (bits).

You must round the answer to the nearest three digits.

Vous devez arrondir la réponse aux trois chiffres les plus proches.

Instruction for mathematical precision.

The zip code is a five-digit number.

Le code postal est un nombre à cinq chiffres.

Common descriptive use for addresses.

The athlete broke a digit during the game.

L'athlète s'est cassé un doigt/orteil pendant le match.

Precise way to describe a bone break in a limb.

Please verify the third digit of your account number.

Veuillez vérifier le troisième chiffre de votre numéro de compte.

Used in security and verification contexts.

The number 1,000 is a four-digit integer.

Le nombre 1 000 est un entier à quatre chiffres.

Combining 'digit' with other math terms like 'integer'.

The experiment requires measurements to four significant digits.

L'expérience nécessite des mesures à quatre chiffres significatifs.

'Significant digits' refers to precision in science.

Inflation has remained in the single digits for a decade.

L'inflation est restée à un seul chiffre pendant une décennie.

Used to describe economic scale (under 10%).

The surgical procedure focused on the reconstruction of the thumb digit.

La procédure chirurgicale s'est concentrée sur la reconstruction du pouce.

Highly formal medical description.

The algorithm processes millions of digits per second.

L'algorithme traite des millions de chiffres par seconde.

Used in high-level computing contexts.

The lottery prize was a life-changing seven-digit sum.

Le prix de la loterie était une somme à sept chiffres qui a changé sa vie.

Describing a large financial amount (millions).

Each digit of the credit card is checked by the system.

Chaque chiffre de la carte de crédit est vérifié par le système.

Focusing on individual components of a code.

The fossil shows clear impressions of the creature's digits.

Le fossile montre des empreintes claires des doigts de la créature.

Scientific use in paleontology.

We need to address the double-digit increase in operating costs.

Nous devons nous attaquer à l'augmentation à deux chiffres des coûts d'exploitation.

Professional business terminology.

The leading digit of the data set followed Benford's Law.

Le premier chiffre de l'ensemble de données suivait la loi de Benford.

Refers to the first digit in a numerical distribution.

The patient presented with a congenital absence of the fifth digit.

Le patient présentait une absence congénitale du cinquième doigt.

Formal clinical description of a birth defect.

The encryption key is a sixty-four-digit hexadecimal string.

La clé de chiffrement est une chaîne hexadécimale de soixante-quatre chiffres.

Technical term in cryptography.

The precision of the atomic clock is measured to fifteen digits.

La précision de l'horloge atomique est mesurée à quinze chiffres.

Describing extreme scientific accuracy.

The evolutionary transition from fins to digits is a key area of study.

La transition évolutive des nageoires aux doigts est un domaine d'étude clé.

Academic use in evolutionary biology.

The software uses a check digit to prevent data entry errors.

Le logiciel utilise un chiffre de contrôle pour éviter les erreurs de saisie de données.

Specific technical term in data validation.

The company's valuation reached eleven digits for the first time.

La valorisation de l'entreprise a atteint onze chiffres pour la première fois.

Refers to a valuation in the tens of billions.

The artist focused on the delicate rendering of the subject's digits.

L'artiste s'est concentré sur le rendu délicat des doigts du sujet.

Formal artistic description.

The ontogeny of the avian digit remains a contentious topic in biology.

L'ontogenèse du doigt aviaire reste un sujet controversé en biologie.

Highly specialized academic vocabulary.

The poem uses 'digit' as a metaphor for the cold, calculated nature of time.

Le poème utilise le mot 'chiffre' comme métaphore de la nature froide et calculée du temps.

Literary analysis of word usage.

The hexadecimal system employs sixteen distinct digits to represent values.

Le système hexadécimal utilise seize chiffres distincts pour représenter les valeurs.

Advanced computer science concept.

The forensic report noted a specific scarring pattern on the third digit.

Le rapport médico-légal a noté une cicatrice spécifique sur le troisième doigt.

Precise legal and medical documentation.

The mathematician explored the properties of the sum of digits in prime numbers.

Le mathématicien a exploré les propriétés de la somme des chiffres dans les nombres premiers.

High-level number theory discussion.

The digital paradigm shift has fundamentally altered our perception of the 'digit'.

Le changement de paradigme numérique a fondamentalement modifié notre perception du 'chiffre'.

Philosophical discussion of technology.

The species is characterized by the presence of vestigial digits on its hind limbs.

L'espèce se caractérise par la présence de doigts vestigiaux sur ses membres postérieurs.

Technical biological description.

The transaction failed because the check digit did not match the algorithm's output.

La transaction a échoué car le chiffre de contrôle ne correspondait pas au résultat de l'algorithme.

Specific application in financial technology.

常见搭配

single digit

double digit

four-digit PIN

significant digit

binary digit

last four digits

injured digit

ten-digit number

digit sum

extra digit

常用短语

in the single digits

— Refers to a number between 1 and 9, often used for temperature or age.

The child is still in the single digits, only seven years old.

double-digit inflation

— An inflation rate of 10% or higher, considered quite high.

The country is struggling with double-digit inflation.

triple-digit heat

— Temperatures of 100 degrees Fahrenheit or higher.

The desert is known for its triple-digit heat in the summer.

get someone's digits

— A slang way to ask for someone's phone number.

He was hoping to get her digits after the party.

last four digits

— The final part of a long identification number, used for verification.

I only need the last four digits of your Social Security number.

round to the nearest digit

— To simplify a number to the closest whole number or decimal place.

Please round the total to the nearest whole digit.

check digit

— A digit added to a code to verify its accuracy.

The last number on the barcode is a check digit.

leading digit

— The first digit of a number.

The leading digit of 542 is 5.

numeric digit

— A redundant but common way to specify a number rather than a letter.

The field only accepts numeric digits.

missing digit

— A number that has been omitted from a sequence or a missing finger/toe.

The detective noticed a missing digit in the suspect's phone number.

容易混淆的词

digit vs number

A number is the whole value (e.g., 50), while a digit is a single symbol (e.g., 5).

digit vs numeral

A numeral is any symbol for a number, while a digit usually refers to 0-9.

digit vs figure

Figure can mean a shape or a person, but in math, it's very similar to digit.

习语与表达

"not lift a digit"

— To do absolutely nothing to help someone.

He didn't lift a digit to help us move the furniture.

informal

"keep your digits crossed"

— A variation of 'keep your fingers crossed,' meaning to hope for luck.

I'll keep my digits crossed that you get the job!

informal/playful

"burn your digits"

— To get hurt by something, often metaphorically in a business deal.

He burned his digits investing in that risky startup.

slang

"sticky digits"

— A tendency to steal things (similar to 'sticky fingers').

Watch out for him; he's known for having sticky digits.

informal

"digit-head"

— A person who is very interested in computers or math.

He's a total digit-head who spends all day coding.

slang

"by the digits"

— To do something very precisely or by the book.

We followed the instructions by the digits to ensure success.

informal

"point the digit"

— To blame someone (variation of 'point the finger').

Don't point the digit at me; I wasn't even there!

informal

"all digits"

— To be very clumsy (variation of 'all thumbs').

I'm all digits today; I keep dropping everything.

informal

"count on your digits"

— To rely on something very basic or obvious.

You can count on your digits that he will be late.

informal

"slip through the digits"

— To lose an opportunity (variation of 'slip through the fingers').

The contract slipped through our digits at the last minute.

informal

容易混淆

digit vs Number

Both refer to mathematical values.

A digit is a single symbol (0-9). A number is the total value, which can have many digits.

The number 1,000 has four digits.

digit vs Numeral

Both are symbols for numbers.

Numeral is a broader term (like Roman numerals). Digit is specific to our base-10 system.

The Roman numeral 'X' represents the number 10, but it is not a digit.

digit vs Figure

Both are used in financial contexts.

Figure often refers to the total amount or a person's shape. Digit is more technical.

She has a six-figure income, meaning her salary has six digits.

digit vs Bit

Both are used in computing.

A bit is specifically a binary digit (0 or 1). A digit can be any number from 0 to 9.

A byte is made of eight binary digits, or bits.

digit vs Character

Both are used in data entry.

A character can be a letter, number, or symbol. A digit is only a number.

The password requires 8 characters, including at least one digit.

句型

I have [number] digits.

I have ten digits.

It is a [number]-digit number.

It is a three-digit number.

Enter the last [number] digits of [noun].

Enter the last four digits of your phone number.

[Noun] grew by double digits.

Sales grew by double digits.

Round to the nearest [number] significant digits.

Round to the nearest three significant digits.

The ontogeny of the [adjective] digit...

The ontogeny of the avian digit is complex.

The temperature is in the [single/double] digits.

The temperature is in the single digits.

The [ordinal] digit is [number].

The first digit is nine.

词族

名词

动词

形容词

如何使用

frequency

Very common in technical, financial, and medical English.

常见错误

Using 'digit' instead of 'number' for values over 9. → The number of students is 25.
25 is a number, but it is not a digit. It is a two-digit number. A digit can only be 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9.
Forgetting the hyphen in compound adjectives. → I have a four-digit PIN.
When 'four' and 'digit' combine to describe the PIN, they need a hyphen. Without it, the sentence is grammatically incorrect.
Using 'digit' for fingers in a casual conversation. → I cut my finger.
While technically correct, 'digit' sounds too formal and strange in daily life. Stick to 'finger' or 'toe' unless you are in a medical setting.
Confusing 'digit' with 'letter' in password requirements. → The password must contain one digit.
A digit is a number (0-9). A letter is a part of the alphabet (A-Z). If a site asks for a digit, don't type a letter!
Saying 'in the ten digits' to mean 'in the tens'. → The temperature is in the double digits.
If a number is between 10 and 99, it is in the 'double digits.' 'Ten digits' refers to a number in the billions (e.g., 1,000,000,000).

小贴士

Hyphenation Rule

Always use a hyphen when 'digit' is part of a compound adjective modifying a noun. For example, 'a six-digit code' is correct, while 'a six digit code' is not. This helps the reader understand that 'six-digit' is one single description of the code. This rule applies to any number of digits, from 'one-digit' to 'ten-digit' and beyond.

Digit vs. Number

Remember that a digit is a symbol (0-9) and a number is a value. The number 15 is one number, but it has two digits. If you are asked for a 'one-digit number,' you must choose a number from 0 to 9. This distinction is very important in math and technical writing to ensure you are being precise about what you mean.

Casual vs. Formal

Use 'finger' or 'toe' in casual conversation. Using 'digit' for body parts can make you sound like a doctor or a robot. For example, if you stub your toe, say 'I hurt my toe,' not 'I hurt my digit.' However, in a biology essay or a medical report, 'digit' is the professional and expected term to use.

Double-Digit Growth

In business, 'double-digit growth' is a very positive phrase. It means growth of 10% or more. If a company's profits are growing in the double digits, they are doing very well. You will see this phrase often in financial newspapers like the Wall Street Journal or the Financial Times. It's a great way to describe success without needing exact numbers.

Binary Digits

Understand that 'bit' is just a short way of saying 'binary digit.' Since computers only understand 'on' and 'off,' they use a system with only two digits: 0 and 1. Every photo, video, and song on your phone is actually just a very long string of these two digits. This is why we call it 'digital' technology—it's all based on digits!

Rounding Digits

When a teacher asks you to 'round to the nearest digit,' they usually mean the nearest whole number. If they say 'round to two decimal digits,' they mean the numbers after the decimal point. Being clear about which digits you are rounding helps you avoid simple mistakes in your math homework. Precision is key when dealing with digits.

PIN Codes

A PIN (Personal Identification Number) is almost always a 'four-digit' or 'six-digit' code. When setting up security, people often talk about the 'number of digits' to describe how strong a password is. More digits generally mean more security because there are more possible combinations. This is a very common everyday use of the word 'digit' that everyone should know.

Getting Digits

If someone asks for your 'digits,' they are asking for your phone number. This is informal slang and is a bit old-fashioned now, but you might still hear it in movies or songs. It's a playful way to use the word. However, in a professional setting, you should always say 'phone number' instead of 'digits' to remain respectful and clear.

Significant Digits

In science, 'significant digits' tell you how precise a measurement is. If you write '5.00,' it has three significant digits, which means you are very sure about those zeros. If you just write '5,' it only has one. This is a crucial concept in chemistry and physics labs. It tells other scientists how much they can trust your data and your tools.

The Finger Connection

To remember the two meanings of 'digit,' just look at your hands. You have ten fingers, and we have ten basic numbers (0-9). The word 'digit' covers both because we used our fingers to count those numbers for thousands of years. This physical connection is the best way to keep the two definitions straight in your mind. Your fingers are your original digits!

记住它

记忆技巧

Think of 'DIG-IT'. You use your fingers (digits) to DIG in the dirt, and you use numbers (digits) to count what you found.

视觉联想

Imagine a hand where each finger has a number from 0 to 9 written on it. This connects the two meanings perfectly.

Word Web

Finger Toe Number PIN Digital Binary Math Anatomy

挑战

Try to find five things in your house that have a specific number of digits (like a clock, a remote, or your own hands).

词源

The word 'digit' comes from the Latin word 'digitus,' which means finger or toe. This reflects the ancient practice of using fingers for counting.

原始含义： A finger or a toe.

Indo-European (Latin)

文化背景

There are no major sensitivities, but in medical contexts, be careful to use 'digit' correctly to avoid sounding insensitive to physical disabilities.

In the US and UK, 'digits' is a common slang term for a phone number, though it is becoming a bit old-fashioned.

The 'Digital Age' refers to the current era of history based on computer technology. Binary digits (bits) are the foundation of all modern computing. The 'Last Four Digits' is a standard security phrase in American banking.

在生活中练习

真实语境

Banking

last four digits
enter your PIN
verify your account
security code

Medicine

injured digit
distal digit
fractured bone
range of motion

Mathematics

round the digit
place value
decimal digit
sum of digits

Technology

binary digit
digital data
digitize records
encryption key

Economics

double-digit growth
single-digit inflation
economic indicators
growth rate

对话开场白

"Do you remember when phone numbers only had seven digits?"

"Is the temperature in the single digits where you live right now?"

"Have you ever had to enter a long string of digits for a security check?"

"Do you think 'getting someone's digits' is still a common phrase?"

"How many digits do you think are in a typical lottery jackpot?"

日记主题

Describe a time you forgot a four-digit code and what happened next.

Write about the importance of 'digits' in our modern, digital world.

If humans had twelve digits instead of ten, how would our math be different?

Discuss a situation where precision (significant digits) was very important.

Reflect on the slang term 'digits'—do you find it charming or annoying?

常见问题

10 个问题

No, 10 is a number, not a digit. It is a two-digit number made up of the digits 1 and 0. Digits are only the single symbols from 0 to 9. This is a very common point of confusion for learners. Remember that digits are the individual building blocks of larger numbers. Just like letters make up words, digits make up numbers.

You can, but it sounds very formal or even a bit strange. In everyday English, people almost always say 'finger' or 'toe.' You would only use 'digit' if you were a doctor, a scientist, or if you were trying to be funny by sounding overly technical. For example, 'I hurt my finger' is much more natural than 'I hurt my digit.' Save 'digit' for your math homework or medical reports.

The term 'double-digit' refers to any number from 10 to 99. It is most commonly used to describe percentages, like 'double-digit inflation' (meaning 10% or more) or 'double-digit growth.' It's a quick way to say that a number is significant but not yet in the hundreds. You'll hear this often in business news and economic reports. It implies a certain level of scale.

Yes, 0 is absolutely a digit. In our base-10 numbering system, there are ten digits in total: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Zero is a very important digit, especially when it acts as a placeholder in larger numbers like 105 or 2,000. Without the digit 0, our modern way of writing numbers would not work. It is also used in binary digits (0 and 1).

A binary digit, often shortened to 'bit,' is the most basic unit of information in computing. It can only have one of two values: 0 or 1. Computers use billions of these binary digits to perform calculations, store photos, and run programs. The word 'binary' means 'two,' so a binary digit is a 'two-state' number. This is the foundation of all digital technology.

The word comes from the Latin 'digitus,' which means finger or toe. Humans have always used their fingers to count, so the word for 'finger' naturally became the word for the symbols we use to count. This is why we have a base-10 system—because we have ten fingers (digits). It's a perfect example of how our bodies have influenced the way we think about mathematics.

In science and math, significant digits (or significant figures) are the digits in a number that carry meaningful information about its precision. For example, if you measure something very carefully, you might have five significant digits. If you just guess, you might only have one. This is important in fields like chemistry and physics to show how accurate a measurement really is. It prevents scientists from overstating their precision.

When you use a number and the word 'digit' together to describe something else, you should use a hyphen. For example, you should write 'a four-digit PIN' or 'a ten-digit phone number.' In these cases, 'four-digit' and 'ten-digit' are acting as adjectives. However, if you are just counting them, you don't need a hyphen: 'The number has four digits.' This is a common rule for compound adjectives in English.

When someone says the temperature is in the 'single digits,' they mean it is between 1 and 9 degrees. This usually implies that it is very cold (if using Celsius) or extremely cold (if using Fahrenheit). It's a common idiomatic way to describe the weather without giving an exact degree. You might also hear it used for a child's age: 'He's still in the single digits,' meaning he is under ten years old.

They are very similar, but 'numeral' is a broader term. A numeral is any symbol that represents a number. This includes our digits (0-9), but also Roman numerals (I, V, X, L, etc.) or even written-out words like 'five.' 'Digit' specifically refers to the single-symbol numbers in a positional system like our base-10 system. So, all digits are numerals, but not all numerals are digits.

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