react

noun

(Internet) An emoji used to express a reaction to a post on social media.

verb

(intransitive) To act in response.

(Internet, intransitive) To post a reaction (icon or emoji indicating how one feels about a posted message).

(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.

(physics, intransitive) To return an impulse or impression; to resist the action of another body by an opposite force

(chemistry, transitive) To cause chemical agents to react; to cause one chemical agent to react with another.

(transitive, now rare) To act or perform a second time; to do over again; to reenact.

Roots

rere- · Latin · back ago-act · Latin · do, drive

Synonyms for react

respondv behavev answern retaliatev replyn

Synonyms & related words for react

Find synonyms, related words, and the definition of react — including respond, behave, answer, retaliate, reply. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to react

Explore words related to react — words associated with it, words that go with it, and its nearest matches in meaning. Related words include reaction, overreact, responsively, reactive, overreaction, response, chemoreceptive, glycerinate. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for react

Common synonyms for react include respond, behave, answer, retaliate, reply — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does react come from?

The word react breaks down into 2 roots of Latin origin: re-, from Latin re (“back”); and -act, from Latin ago (“do, drive”). Explore each root to see other English words built from the same source.