react

verb
re·​act | \ rē-ˈakt How to pronounce react (audio) \
reacted; reacting; reacts

Definition of react

intransitive verb

1 : to exert a reciprocal or counteracting force or influence often used with on or upon
2 : to change in response to a stimulus
3 : to act in opposition to a force or influence usually used with against
4 : to move or tend in a reverse direction
5 : to undergo chemical reaction

transitive verb

: to cause to react

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Synonyms for react

Synonyms

reply, respond

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Examples of react in a Sentence

When I told her what happened, she reacted with anger. I didn't expect him to react that way. The firefighters reacted quickly when they heard the alarm. He reacted badly to the drug.
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Recent Examples on the Web

Nonetheless investors could react badly if Mr Powell fails to meet their expectations, warns Neil Shearing of Capital Economics, a consultancy. The Economist, "The Fed cuts rates for the first time in over a decade," 1 Aug. 2019 But even as fans were reacting to Stroman’s arrival on Twitter, reports surfaced that the Mets are still envisioning a Syndergaard trade, which would be a decidedly backward move in the face of Sunday’s big deal. Jon Tayler, SI.com, "The Mets Would Be Foolish to Trade Noah Syndergaard," 28 July 2019 And while some cats may react aggressively to unwanted physical attention, others may merely tolerate our social advances in exchange for the good stuff (food and lodgings). Lauren Robin Finka, Quartz, "How to stroke a cat, according to science," 23 July 2019 Another issue that some worry about is that people who receive these warnings still won’t all react the same. NBC News, "National Weather Service will debut new flood warning system to get people to listen," 17 July 2019 After Robinson reacted to the gibe, the Lions showed him with FaceApp's old setting applied. Mark Inabinett | Minabinett@al.com, al, "Does the FaceApp old setting affect A’Shawn Robinson?," 17 July 2019 Like in any disease, each medication may work better in certain people — because not everyone's brain circuitry reacts exactly the same way to opioid abuse — but that hasn't been studied. Lauran Neergaard, chicagotribune.com, "A peek into opioid users’ brains as they try to quit," 10 July 2019 And the moms probably aren't going to react well to that. Martha Sorren, Woman's Day, "Elliana & Yolanda's Return to 'Dance Moms' Is Already Causing So Much Drama," 10 July 2019 Like in any disease, each medication may work better in certain people — because not everyone’s brain circuitry reacts exactly the same way to opioid abuse — but that hasn’t been studied. Lauran Neergaard, The Denver Post, "Researchers peek into opioid users’ brains as they try to quit," 9 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'react.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of react

1644, in the meaning defined at intransitive sense 1

History and Etymology for react

New Latin reactus, past participle of reagere, from Latin re- + agere to act — more at agent

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Statistics for react

Last Updated

5 Aug 2019

Look-up Popularity

Time Traveler for react

The first known use of react was in 1644

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More Definitions for react

react

verb

English Language Learners Definition of react

: to behave or change in a particular way when something happens, is said, etc.
of a chemical substance : to change after coming into contact with another substance
medical : to be affected by a drug, food, etc., in usually a bad way

react

verb
re·​act | \ rē-ˈakt How to pronounce react (audio) \
reacted; reacting

Kids Definition of react

1 : to act or behave in response to something Firefighters reacted quickly to the situation.
2 : to oppose a force or influence
Hint: In this sense, react is usually used with against. Workers reacted against unfair treatment.
3 : to go through a chemical reaction Acids react with bases to form salt.
re·​act | \ rē-ˈakt How to pronounce react (audio) \

Medical Definition of react

1 : to respond to a stimulus
2 : to undergo chemical reaction

transitive verb

: to cause to react

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More from Merriam-Webster on react

Rhyming Dictionary: Words that rhyme with react

Thesaurus: All synonyms and antonyms for react

Spanish Central: Translation of react

Nglish: Translation of react for Spanish Speakers

Britannica English: Translation of react for Arabic Speakers

Comments on react

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