Dictionary.com

react

[ ree-akt ]
/ riˈækt /
Save This Word!
See synonyms for: react / re-acted / re-acting on Thesaurus.com

verb (used without object)

to act in response to an agent or influence: How did the audience react to the speech?
to act reciprocally upon each other, as two things.
to act in a reverse direction or manner, especially so as to return to a prior condition.
to act in opposition, as against some force.
to respond to a stimulus in a particular manner: reacting to a shock by jumping; to react to the word “coward” with anger.
to undergo a chemical reaction.

QUIZZES

QUIZ YOURSELF ON THE 12 TYPES OF VERB TENSES!

Loosen up your grammar muscles because it’s time to test your knowledge on verb tenses!
Question 1 of 6
The verb tenses can be split into which 3 primary categories?

Meet Grammar Coach

Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing

Meet Grammar Coach

Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of react

1635–45; re- + act, probably modeled on Medieval Latin reagere

Definition for react (2 of 2)

re-act
[ ree-akt ]
/ riˈækt /

verb (used with object)

to act or perform again.

Origin of re-act

First recorded in 1650–60; re- + act
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use react in a sentence

British Dictionary definitions for react (1 of 2)

react
/ (rɪˈækt) /

verb

(intr ; foll by to, upon etc) (of a person or thing) to act in response to another person, a stimulus, etc, or (of two people or things) to act together in a certain way
(intr foll by against) to act in an opposing or contrary manner
(intr) physics to exert an equal force in the opposite direction to an acting force
chem to undergo or cause to undergo a chemical reaction

Word Origin for react

C17: from Late Latin reagere, from re- + Latin agere to drive, do

British Dictionary definitions for react (2 of 2)

re-act
/ (riːˈækt) /

verb

(tr) to act or perform again
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for react

react
[ rē-ăkt ]

v.

To act in response to a stimulus.
To undergo a chemical reaction.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK