act
act · noun
Definitions
noun
- 1.
A thing done; a deed.
- 2.
A law passed by a legislative body.
- 3.
A main division of a play, opera, or ballet.
- 4.
A performance or pretense.
- 5.
A short performance by a performer or group.
- 6.
To take action; do something.
- 7.
To perform in a play, film, or television production.
- 8.
To behave in a specified way.
Forms
plural: acts
Phrases & expressions
- •act of God — An uncontrollable natural event.
- •caught in the act — Discovered while doing something wrong.
- •get your act together — Organize yourself; become more effective.
- •act up — Misbehave; malfunction.
- •in the act of — While doing something.
- •clean up one's act — Improve one's behavior.
Related words
Etymology
From Latin actus ("a doing, a driving, impulse, a part in a play"), from agere ("to do, drive, lead").