vi to perform on the stage; to represent a character.
2. act ·vt to feign or counterfeit; to simulate.
3. act ·noun a formal solemn writing, expressing that something has been done.
4. act ·vt to perform, as an actor; to represent dramatically on the stage.
5. act ·vi to exert power; to produce an effect; as, the stomach acts upon food.
6. act ·noun process of doing; action. in act, in the very doing; on the point of (doing).
7. act ·noun a state of reality or real existence as opposed to a possibility or possible existence.
8. act ·vt to move to action; to actuate; to animate.
9. act ·vt to perform; to execute; to do.
10. act ·noun that which is done or doing; the exercise of power, or the effect, of which power exerted is the cause; a performance; a deed.
11. act ·vt to assume the office or character of; to play; to personate; as, to act the hero.
12. act ·noun a thesis maintained in public, in some english universities, by a candidate for a degree, or to show the proficiency of a student.
13. act ·vi 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.
14. act ·noun a performance of part of a play; one of the principal divisions of a play or dramatic work in which a certain definite part of the action is completed.
15. act ·vi 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.
xvi. act ·noun the result of public deliberation; the decision or determination of a legislative body, council, court of justice, ·etc.; a decree, edit, law, judgment, resolve, award; as, an act of parliament, or of congress.