Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “act”

act

verb
 
 
/ækt/
BEHAVE [I] B1 to behave in a particular way: to act responsibly Jeff's been acting strangely recently. Stop acting like a child!Behaving, interacting and behaviour
DO SOMETHING [I] B2 to do something, especially in order to solve a problem: We have to act now to stop the spread of this disease.Acting and actsDealing with things or people
PERFORM [I, T] B1 to perform in a play or film: He's acted in a number of successful Hollywood films.Acting, rehearsing and performing
(Definition of act verb from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “act” in other dictionaries

Word of the Day

debut

the occasion when someone performs or presents something to the public for the first time

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More