react

verb

Pronunciation: /ɹiːˈækt/

Etymology: From re- + act. Piecewise doublet of redact.

An emoji used to express a reaction to a post on social media.
“Sad reacts only”

Etymology: From re- + act. Piecewise doublet of redact.

To act in response.
“How did she react to the news?”
To act or perform a second time; to do over again; to reenact.
“It is somewhat extraordinary, that the offence for which James II, was expelled, that of setting up power by assumption, should be re-acted, under another shape and form, by the parliament that expelled him.”
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.”
To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.
To cause chemical agents to react; to cause one chemical agent to react with another.
To post a reaction (icon or emoji indicating how one feels about a posted message).