react
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Pronunciation[change]
Verb[change]
Plain form |
Third-person singular |
Past tense |
Past participle |
Present participle |


- (intransitive) If you react to a person or event, you do something because of the person or event.
- When someone shouts at you, you usually react by shouting back.
- (intransitive) If you react to a medicine or other substance, something happens in your body because of it.
- She reacts badly to asprin. Her skin becomes red all over her body.
- (intransitive) When two or more chemicals react, they combine to form new chemical compounds.