Pronunciation: (ak'ting), [key]
1. serving temporarily, esp. as a substitute during another's absence; not permanent; temporary: the acting mayor.
2. designed, adapted, or suitable for stage performance.
3. provided with detailed stage directions for the performer: an acting version of a play.
the art, profession, or activity of those who perform in stage plays, motion pictures, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.