2 the performance of some physical or mental process; action
3 (capital when part of a name)the formally codified result of deliberation by a legislative body; a law, edict, decree, statute, etc
4 (often plural)a formal written record of transactions, proceedings, etc, as of a society, committee, or legislative body
5 a major division of a dramatic work
6
a a short performance of skill, a comic sketch, dance, etc, esp one that is part of a programme of light entertainment
b those giving such a performance
7 an assumed attitude or pose, esp one intended to impress
8 philosophyan occurrence effected by the volition of a human agent, usually opposed at least as regards its explanation to one which is causally determined. Compareevent (sense 4)
▷ verb
9 (intransitive)to do something; carry out an action
10 (intransitive)to function in a specified way; operate; react ■ his mind acted quickly
11 to perform (a part or role) in a play, etc
12 (transitive)to present (a play, etc) on stage
13 (intransitive; usually followed by for or as)to be a substitute (for); function in place (of)
14 (intransitive; foll byas)to serve the function or purpose (of) ■ the glass acted as protection
15 (intransitive)to conduct oneself or behave (as if one were) ■ she usually acts like a lady
16 (intransitive)to behave in an unnatural or affected way
17 (copula)to pose as; play the part of ■ to act the fool
18 (copula)to behave in a manner appropriate to (esp in the phrase act one's age)
19 (copula)not standardto seem or pretend to be ■ to act tired