This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

verb-intransitive. To act in response to or under the influence of a stimulus or prompting: reacted strongly to the sarcastic tone of the memorandum.

verb-intransitive. To act in opposition to a former condition or act: composers who reacted against romanticism.

verb-intransitive. To act reciprocally or in return.

verb-intransitive. Chemistry To undergo a reaction: Methane reacts with hydroxyl to produce formaldehyde.

v. Chemistry To cause (a substance or substances) to undergo a reaction.

v. To act or perform a second time; to do over again; as, to react a play; the same scenes were reacted at Rome.

v. 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.

v. To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.

v. To act or perform a second time; to do over again; to reenact

verb-intransitive. To return an impulse or impression; to resist the action of another body by an opposite force.

verb-intransitive. To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.

To act or perform anew; reenact: as, to react a play.

To exert, as a thing acted upon, an opposite action upon the agent.

To act, after being acted upon, in a manner directly opposed to the first action, and in increased measure.

To act mutually or reciprocally upon each other, as two or more chemical agents.

v. show a response or a reaction to something

v. undergo a chemical reaction; react with another substance under certain conditions

v. act against or in opposition to

reacted    reacting    reacts   

reenact    return    recoil   

abstract    act    attacked    attract    backed    blacked    compact    contract    counterattacked    cracked