i Register
In some senses, acting is marked as archaic. Watch for register when choosing this word.
adj
Temporarily assuming the duties or authority of another person when they are unable to do their job.
The Acting Minister must sign Executive Council documents in a Minister's absence.
The CEO is currently in a hospital. The CFO is acting CEO in the meantime.
noun
An action or deed.
[…] he does so much magnifie Nature and her Actings in all this material World, as he gives just cause of suspicion that he hath made her a kind of joynt Deess with God in the Affairs thereof;
[…] I desire this Account may pass with them, rather for a Direction to themselves to act by, than a History of my actings, seeing it may not be of one farthing value to them to note what became of me.
Something done by a party—so called to avoid confusion with the legal senses of deed and action.
Pretending.
The occupation of an actor.