costar

Other spellings

• co-star

Word parts

co- + star

Pronunciation

• IPA ^(key): /ˈkəʊstɑː(r)/

Noun

Singular costar

Plural costars

1. (countable) A costar is an actor who appears on-screen with other actors of equal importance.

Verb

Plain form costar

Third-person singular costars

Past tense costared

Past participle costared

Present participle costaring

1. If an actor costars, they appear in a production as a costar.