react
To react means to do something or change your behavior because of something that happened.
Explanation at your level:
You use react when you do something because of an event. If I say 'Hello,' you say 'Hi.' That is how you react. It is a simple way to show that you are listening and responding to the world around you.
When something happens, you react. For example, if you see a spider, you might scream. That is your reaction. You can react to news, people, or things. It is very common to say 'How did you react?' when asking a friend about their day.
The verb react describes how we respond to stimuli. We react to changes in plans, to feedback, or to unexpected events. It is often followed by 'to'. For example: 'The team reacted well to the coach's advice.' It is a neutral word, but you can add adverbs like 'quickly' or 'calmly' to explain the quality of your response.
In B2 English, react is used to discuss nuanced social interactions or professional feedback. You might talk about how a company reacts to market trends or how a person reacts under pressure. It is also used in chemistry, but in daily life, it implies a psychological or emotional adjustment to external circumstances.
At the C1 level, react is used to describe complex behavioral patterns. You might analyze how a society reacts to legislative changes or how an individual reacts against societal expectations. It implies a deeper level of agency; it is not just a reflex, but a conscious or semi-conscious choice of how to engage with an environment. Figuratively, it can describe how one 'reacts' to a piece of art or literature, reflecting personal interpretation.
At the mastery level, react encompasses the philosophical and scientific breadth of the word. From the chemical reactivity of elements to the existential reaction of a protagonist in a novel, the word carries weight. It can be used to describe a counter-movement, as in 'reacting against the status quo,' suggesting a deliberate opposition. Its etymological roots in 'acting back' are fully realized here, where every reaction is seen as a vital component of a larger, interconnected system of cause and effect.
30초 단어
- React means to respond to a stimulus.
- It is a regular verb.
- Always use 'to' after it.
- It is used in both science and daily life.
Think of react as the 'echo' of an action. When something happens to you—a surprise, a question, or even a sudden change in temperature—your body or mind makes a move. That move is your reaction.
You might react with a smile when you hear good news, or you might react with confusion if someone tells a joke you don't understand. It is a very natural part of being human. In the world of science, chemicals also react when they are mixed together, creating something entirely new.
Using this word helps you describe the connection between an event and the way we handle it. It is all about the cause and effect relationship in our daily lives.
The word react has a fascinating history rooted in Latin. It comes from the prefix re-, meaning 'again' or 'back', and actus, which is the past participle of agere, meaning 'to do' or 'to act'.
Essentially, to react is to 'act back.' It entered the English language in the 17th century, primarily through the fields of chemistry and physics. Scientists needed a word to describe how different substances interacted with one another when combined in a beaker or a test tube.
Over time, the word moved out of the laboratory and into our everyday conversations. By the 19th century, people started using it to describe human emotions and social behaviors. It is a perfect example of how a technical term can evolve to become a core part of how we express our feelings.
You will most often hear react paired with prepositions like to, with, or against. For example, 'How did she react to the news?' or 'The crowd reacted with cheers.'
In a formal setting, like a business meeting, you might say, 'The market reacted negatively to the new policy.' In a casual setting, you might just say, 'I didn't know how to react!'
It is important to note that react is a verb. If you want to talk about the response itself, you use the noun form: reaction. Keep an eye on your tone; 'react' is neutral, but the context—like 'reacting violently' or 'reacting calmly'—determines if the situation is positive or negative.
While 'react' is a direct verb, it appears in many common phrases. 1. Knee-jerk reaction: An immediate, unthinking response to something. 2. React in kind: To respond to someone in the same way they treated you. 3. Chain reaction: A series of events where one action causes the next. 4. React on the fly: To make a quick decision without much preparation. 5. Overreact: To react more strongly than a situation requires.
These expressions help you add color to your sentences. For instance, if someone cuts you off in traffic, you might have a knee-jerk reaction to honk your horn. Understanding these idioms makes you sound much more like a native speaker.
React is a regular verb. Its past tense and past participle forms are reacted. It is usually intransitive, meaning it doesn't take a direct object; you react to something.
Pronunciation is straightforward: /riˈækt/. The stress is on the second syllable. It rhymes with words like exact, pact, fact, tact, and tract.
When speaking, ensure you clearly enunciate the 't' at the end. It is a crisp, sharp sound that mirrors the suddenness of a reaction itself. Whether you are in London or New York, the pronunciation remains consistent, making it a very reliable word to use in any English-speaking environment.
Fun Fact
It started in chemistry labs before describing human feelings.
Pronunciation Guide
Clear 're' sound followed by 'akt'.
Similar to UK, slightly more emphasis on the 'a'.
Common Errors
- Mispronouncing the 'a' as 'o'
- Ignoring the 't' at the end
- Putting stress on the first syllable
Rhymes With
Difficulty Rating
Easy to read
Standard usage
Commonly used
Clear sound
What to Learn Next
Prerequisites
Learn Next
고급
Grammar to Know
Regular Verbs
react -> reacted
Prepositional Verbs
react to
Adverb Placement
reacted quickly
Examples by Level
The baby reacted to the sound.
baby / sound / response
react + to
I reacted quickly.
I / fast / response
adverb usage
He reacted with a smile.
He / smile / response
react + with
Did you react?
Question about response
past tense question
They reacted to the light.
They / light / response
react + to
She reacted well.
She / good / response
adverb placement
We reacted to the news.
We / news / response
past tense
Don't react yet.
Wait to respond
imperative
How did he react to the movie?
The dog reacted to the cat.
I reacted by laughing.
She reacted calmly to the mistake.
They reacted with surprise.
The chemicals reacted immediately.
Please react to my email.
He reacted to the cold air.
The market reacted to the interest rate hike.
She reacted to the criticism with grace.
How do you usually react to stress?
The crowd reacted with a loud roar.
He reacted against the new rules.
It is hard to react when you are shocked.
The skin reacted to the lotion.
They reacted to the situation with caution.
The government reacted swiftly to the crisis.
His body reacted to the medicine.
She reacted to the insult with silence.
The team reacted to the change in strategy.
How should we react to such behavior?
The audience reacted to the play with applause.
He reacted to the news with disbelief.
They reacted to the challenge with determination.
The public reacted against the controversial policy.
The artist reacted to the changing political climate.
She reacted to the complex data with skepticism.
The system reacted to the input in real-time.
He reacted to the trauma by withdrawing.
They reacted to the provocation with restraint.
The community reacted to the tragedy with unity.
One must react to these developments carefully.
The organism reacted to the stimuli in a predictable manner.
He reacted to the existential dread with stoicism.
The market reacted to the volatility with panic.
She reacted to the critique by refining her work.
The chemical compound reacted violently.
We must react to the shifting paradigm.
They reacted to the injustice with civil disobedience.
The entire ecosystem reacted to the climate shift.
자주 쓰는 조합
Idioms & Expressions
"knee-jerk reaction"
An automatic, unthinking response.
That was just a knee-jerk reaction.
casual"chain reaction"
A series of events caused by one action.
The decision started a chain reaction.
neutral"react on the fly"
To respond quickly without planning.
We had to react on the fly.
casual"overreact"
To respond too intensely.
Don't overreact to the small mistake.
neutral"react in kind"
To respond in the same way.
He was rude, so she reacted in kind.
formal"react to the situation"
To handle current circumstances.
We are reacting to the situation.
neutralEasily Confused
Similar suffix.
Interact is two-way.
They interact with each other.
Similar structure.
Counteract is to stop.
Eat to counteract hunger.
Same meaning.
Respond is more formal.
Please respond to the letter.
Similar sound.
Reflect is about thought.
Reflect on your life.
Sentence Patterns
Subject + react + to + noun
I reacted to the news.
Subject + react + adverb
He reacted calmly.
Subject + react + with + noun
They reacted with joy.
Subject + react + against + noun
They reacted against the law.
Subject + react + by + gerund
She reacted by leaving.
어휘 가족
Nouns
Verbs
Adjectives
관련
How to Use It
9/10
Formality Scale
자주 하는 실수
You only need one 'to'.
Use 'to' for the stimulus.
Incorrect preposition.
Wrong preposition usage.
Don't combine prepositions.
Tips
Memory Palace
Imagine a mirror reflecting your action back.
Native Speaker Tip
Use 'react to' for almost all situations.
Cultural Insight
It is common to ask 'What was your reaction?'
Grammar Shortcut
Always keep the 'to' preposition.
Say It Right
Stress the second syllable.
Don't Make This Mistake
Don't say 'react at'.
Did You Know?
It comes from Latin for 'doing back'.
Study Smart
Pair it with adverbs like 'quickly' or 'calmly'.
Memorize It
Mnemonic
RE (back) + ACT (do) = Do back.
Visual Association
A tennis player hitting a ball back (reacting).
Word Web
챌린지
Describe your reaction to the last movie you saw.
어원
Latin
Original meaning: To act back
문화적 맥락
None, universally understood.
Used frequently in news, science, and daily social life.
Practice in Real Life
Real-World Contexts
At work
- React to feedback
- React to deadlines
- React to changes
In science
- Chemicals react
- React to stimuli
- Fast reaction
In daily life
- React to news
- React to a joke
- React to surprise
In relationships
- React to emotions
- React with patience
- React with anger
Conversation Starters
"How do you react to bad news?"
"Do you react quickly to danger?"
"How did you react to your first job?"
"Do you react differently than your friends?"
"Why do people react with anger?"
Journal Prompts
Write about a time you reacted to a surprise.
How do you react when you are stressed?
Describe a chemical reaction you know.
How do you think you react to criticism?
자주 묻는 질문
8 질문It is neutral and used everywhere.
Use 'react to' followed by the cause.
Reaction.
Yes, especially in chemistry.
Very similar, but 'react' implies a faster or more instinctive response.
Reacted.
ree-AKT.
Yes.
셀프 테스트
She ___ to the loud noise.
Third person singular.
What does 'react' mean?
React is to respond.
You react 'to' something.
Correct preposition.
Word
뜻
Synonym matching.
Adverb placement.
점수: /5
Summary
To react is to act back in response to something that has happened.
- React means to respond to a stimulus.
- It is a regular verb.
- Always use 'to' after it.
- It is used in both science and daily life.
Memory Palace
Imagine a mirror reflecting your action back.
Native Speaker Tip
Use 'react to' for almost all situations.
Cultural Insight
It is common to ask 'What was your reaction?'
Grammar Shortcut
Always keep the 'to' preposition.
예시
How did he react when you told him the news?
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