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English definition of “act”

act

verb [I] (DO SOMETHING)    /ækt/
B2 to do something for a particular purpose or to solve a problem: [+ to infinitive] Engineers acted quickly to repair the damaged pipes. She acted without thinking. Who is acting for/on behalf of (= who is representing) the defendant? He never acts on other people's advice (= does what other people suggest). Acting on impulse (= without thinking first) can get you into a lot of trouble.Acting and actsDealing with things or people
(Definition of act verb (DO SOMETHING) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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