actor Meaning, Definition & Usage

  1. noun a theatrical performer
    thespian; player; role player; histrion.
  2. noun a person who acts and gets things done
    doer; worker.
    • he's a principal actor in this affair
    • when you want something done get a doer
    • he's a miracle worker

WordNet

Ac"tor noun
Etymology
L. actor, fr. agere to act.
Definitions
  1. One who acts, or takes part in any affair; a doer.
  2. A theatrical performer; a stageplayer.
    After a well graced actor leaves the stage. Shak.
  3. (Law) (a) An advocate or proctor in civil courts or causes. Jacobs. (b) One who institutes a suit; plaintiff or complainant.

Webster 1913