acting acting /ˈæktɪŋ/

adjective

1. () Serving temporarily especially as a substitute  ( acting )
   serving temporarily especially as a substitute
    The acting president
   the acting president
   

noun

1. () The performance of a part or role in a drama  ( performing , playing , playacting , acting )
   the performance of a part or role in a drama
     She pursued a career in acting and starred in several successful movies.
   She pursued a career in acting and starred in several successful movies.