acting

American  

[ak-ting] / ˈæk tɪŋ /

adjective

1. serving temporarily, especially as a substitute during another's absence; not permanent; temporary.

   the acting mayor.

   Synonyms:

   interim, provisional

2. designed, adapted, or suitable for stage performance.

3. provided with detailed stage directions for the performer.

   an acting version of a play.

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noun

1. the art, profession, or activity of those who perform in stage plays, motion pictures, etc.

acting British  

/ ˈæktɪŋ /

adjective

1. taking on duties temporarily, esp as a substitute for another

   the acting president

2. operating or functioning

   an acting order

3. intended for stage performance; provided with directions for actors

   an acting version of ``Hedda Gabler''

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noun

1. the art or profession of an actor

Other Word Forms

• proacting
  adjective
• unacting
  adjective

Etymology

Origin of acting

First recorded in 1595–1605; act + -ing ², -ing ¹

Example Sentences

The study found no clear biological differences between the wasps involved in aggressive competition and those acting as compensators.

From Science Daily • May 26, 2026

What is also notable is that it is signed by Todd Blanche, the acting attorney general.

From Slate • May 26, 2026

In an interview, Claver-Carone said that he expressed strong support for hiring Pigasse and Centerview to Delcy Rodríguez, Venezuela’s acting president, and consulted with the State Department and Treasury Department.

From The Wall Street Journal • May 26, 2026

Like to me, acting is an irrational act.

From Los Angeles Times • May 26, 2026

Burry suspected that serious investors might even be acting on his blog posts, but he had no clear idea who they might be.

From "The Big Short" by Michael Lewis