acting
US /ˈæk.tɪŋ/
UK /ˈæk.tɪŋ/

1.
the art or occupation of performing in plays, movies, or television.
:
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She decided to pursue a career in acting.
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His acting in the new film was highly praised.
1.
performing a particular role or function, typically on a temporary basis.
:
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He is the acting manager while the director is on leave.
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The acting president addressed the nation.