Other spellings change

Word parts change

co- + star

Pronunciation change

Noun change

Singular
co-star

Plural
co-stars

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

Verb change

Plain form
co-star

Third-person singular
co-stars

Past tense
co-stared

Past participle
co-stared

Present participle
co-staring

  1. If an actor co-stars, they appear in a production as a co-star.