react
/ɹiːˈækt/ verb, noun
Forms reacts reacting reacted
- verb (intransitive) To act in response. “How did she react to the news?”
- verb (transitive, now rare) To act or perform a second time; to do over again; to reenact.
- verb (physics, intransitive) To return an impulse or impression; to resist the action of another body by an opposite force “Every body reacts on the body that impels it from its natural state.”
- verb (chemistry, intransitive) To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.
- verb (chemistry, transitive) To cause chemical agents to react; to cause one chemical agent to react with another.
- verb (Internet, intransitive) To post a reaction (icon or emoji indicating how one feels about a posted message).
- noun (Internet) An emoji used to express a reaction to a post on social media. “Sad reacts only”
Synonyms
Etymology
From re- + act. Piecewise doublet of redact.
The ä emphasizes the pronunciation of the word with two syllables rather than one syllable.
Webster’s 1913
- verb To act or perform a second time; to do over again; as, to react a play; the same scenes were reacted at Rome.
- verb To return an impulse or impression; to resist the action of another body by an opposite force; as, every body reacts on the body that impels it from its natural state.
- verb To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “react”, CC BY-SA 4.0. Details