1590s, "putting forth activity," present participle adjective from act (v.). Meaning "performing temporary duties" is from 1797.

c. 1600, "performance of deeds;" 1660s, "performance of plays;" verbal noun from present participle of act (v.). Acting out in psychology is from 1945.

acting(a): serving temporarily especially as a substitute; "the acting president" the performance of a part or role in a drama (actor) a theatrical performer (actor) a person [..]

The personal service agreement is a primary legal instrument in the entertainment industry. This agreement is negotiated between an artist and a company that manufactures, promotes, and distributes th [..]

(n) the performance of a part or role in a drama(adj) serving temporarily especially as a substitute

The temporary movement of a permanent employee to the same or a higher classification level within the Department of Education. The Employment Standard applies to acting at a higher classification level and where a person has applied for an acting opportunity, even if they are at the same level.

 The performance of a character in a dramatic production—such as a film, computer game or radio production.

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.'' ''Acti [..]

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