Found 1 items, similar to to act up.
English → English (gcide) Definition: to act up Act \Act\, v. i. 1. To exert power; to produce an effect; as, the stomach acts upon food. [1913 Webster] 2. To perform actions; to fulfill functions; to put forth energy; to move, as opposed to remaining at rest; to carry into effect a determination of the will. [1913 Webster] He hangs between, in doubt to act or rest. --Pope. [1913 Webster] 3. To behave or conduct, as in morals, private duties, or public offices; to bear or deport one's self; as, we know not why he has acted so. [1913 Webster] 4. To perform on the stage; to represent a character. [1913 Webster] To show the world how Garrick did not act. --Cowper. [1913 Webster] To act as or To act for, to do the work of; to serve as. To act on, to regulate one's conduct according to. To act up to, to equal in action; to fulfill in practice; as, he has acted up to his engagement or his advantages. to act up, to misbehave [1913 Webster]