costar

1 of 2

noun

co·​star ˈkō-ˌstär 

variants or co-star

plural costars or co-stars

: one of two or more main performers who star in a movie, play, etc.

… the star seems more relaxed and confident, and there's a bracing snap to the byplay between him and his costars.

—Mark Harris

costar

2 of 2

verb

variants or co-star

costarred or co-starred; costarring or co-starring

1

transitive : to employ or present (someone) as one of two or more leading performers in a movie, play, etc.

Directed by Lasse Hallström … and costarring a fine ensemble …

—Leonora Langley

2

intransitive : to appear with another star in a movie, play, etc.

Examples of costar in a Sentence

Recent Examples on the Web

Noun

Mandy Moore's new bundle of joy is being showered with love from the actress' This Is Us costars. —Ingrid Vasquez, Peoplemag, 26 Sep. 2024

Dewan got engaged to her former costar Steve Kazee in 2020, and the couple now share two children. —Ryan Coleman, EW.com, 26 Sep. 2024

Verb

Delroy Lindo and Jack O'Connell also costar in Sinners, which releases in theaters March 7, 2025. —Tommy McArdle, Peoplemag, 24 Sep. 2024

Unstoppable, which costars Jharrel Jerome, Bobby Cannavale, Michael Peña and Don Cheadle in a biopic of 2011 NCAA Division 1 wrestling champion Anthony Robles, is the latest film Affleck and Damon have worked on as producers through Artists Equity. —Tommy McArdle, Peoplemag, 13 Sep. 2024

Word History

First Known Use

Noun

1888, in the meaning defined above

Verb

1896, in the meaning defined at sense 2