definition of
act

[1] #1 act n. [enactment] a legal document codifying the result of deliberations of a committee or society or legislative body. wn

[2] #2 act v. [move] perform an action, or work out or perform (an action); "think before you act"; "We must move quickly"; "The governor should act on the new energy bill"; "The nanny acted quickly by grabbing the toddler and covering him with a wet towel". wn

[3] #3 act n. [deed, human action, human activity] something that people do or cause to happen. wn

[4] #4 act v. [behave, do] behave in a certain manner; show a certain behavior; conduct or comport oneself; "You should act like an adult"; "Don't behave like a fool"; "What makes her do this way?"; "The dog acts ferocious, but he is really afraid of people". wn

[5] #5 act n. a subdivision of a play or opera or ballet. wn