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

From 2012 to 2018, Washington and her costar Tony Goldwyn portrayed political fixer Pope and President Fitzgerald Grant II respectively. —Esther Kang, People.com, 19 Dec. 2024

Cox executive produces the series with Brent Miller, costar Wallace and co-showrunners Simran Baidwan and Dan Ewen, who first brought the idea to the actress seven years ago. —Ashley Boucher, EW.com, 18 Dec. 2024

Verb

An Academy Award winner for his leading role in 2003's The Pianist, Brody costars in The Brutalist with Felicity Jones, Guy Pearce, Joe Alwyn, Raffey Cassidy, Stacy Martin, Emma Laird, Isaach De Bankolé and Alessandro Nivola. —Jen Juneau, People.com, 3 Dec. 2024

Howerton costars as Jim Balsillie, the very real negotiator who, alongside Mike Lazaridis (Jay Baruchel), gave the world its first smartphone. —Jennifer M. Wood, WIRED, 7 Nov. 2024

Word History

First Known Use

Noun

1888, in the meaning defined above

Verb

1896, in the meaning defined at sense 2