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Definition of react

react

/ɹiˈækt/
re · act

Adverb:reactively
•
Adjective:reactive
•
Past Simple:reacted
•
Past Participle:reacted
•
Present Participle:reacting
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react Lexical Profile

react Game Scores & Validity

• verb

1

To act, behave, or respond in a particular way as a direct result of a stimulus, event, or situation.

Example

"The audience began to react enthusiastically as soon as the band walked onto the stage."


2

To undergo a chemical or physical change when interacting with another substance or atomic nucleus.

Example

"Iron will slowly react with oxygen and moisture in the air to form rust."


3

To experience an adverse physiological response, such as an allergy or intolerance, upon exposure to a substance.

Example

"Some patients react badly to penicillin and require alternative antibiotics."


4

To act in opposition to an existing force, influence, or trend (usually followed by 'against').

Example

"Many young artists began to react against the rigid conventions of traditional portraiture."

Synonyms
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Antonyms
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• Rhymes for react

Word Origin & Etymology

Coined in the mid-17th century from the prefix 're-' (meaning 'back' or 'again') and the verb 'act', modeled on Medieval Latin 'reactus', the past participle of 'reagere' ('to act in return').

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of React. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/react
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