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
Mark Harris
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
Leonora Langley2
intransitive
: to appear with another star in a movie, play, etc.
Examples of costar in a Sentence
Recent Examples on the Web
Madison E. Goldberg, PEOPLE, 29 Oct. 2025
When Brittany Snow thinks of filming intimate scenes with costar Malin Akerman onThe Hunting Wives, one thing in particular stands out to her.
—Raechal Shewfelt, Entertainment Weekly, 29 Oct. 2025
Lex Goldstein, PEOPLE, 22 Oct. 2025
The actress, who costars in the film alongside Oscar Isaac and Jacob Elordi, wore a sleeveless, sheer midi dress from the Italian luxury fashion house’s fall 2025 ready-to-wear collection.
—Julia Teti, Footwear News, 21 Oct. 2025
See All Example Sentences for costar
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Noun
Derek recently interviewed Bell, 45, and costar Adam Brody ahead of the season 2 premiere of Netflix's Nobody Wants This.
—Madison E. Goldberg, PEOPLE, 29 Oct. 2025
When Brittany Snow thinks of filming intimate scenes with costar Malin Akerman onThe Hunting Wives, one thing in particular stands out to her.
—Raechal Shewfelt, Entertainment Weekly, 29 Oct. 2025
Verb
In New York City, Hugh Jackman and Sutton Foster pose for a rare photo at Café Carlyle, and Bugonia costars Emma Stone and Alicia Silverstone attend the film's premiere.
—Lex Goldstein, PEOPLE, 22 Oct. 2025
The actress, who costars in the film alongside Oscar Isaac and Jacob Elordi, wore a sleeveless, sheer midi dress from the Italian luxury fashion house’s fall 2025 ready-to-wear collection.
—Julia Teti, Footwear News, 21 Oct. 2025
See All Example Sentences for costar
Cite this Entry
“Costar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/costar. Accessed 29 Oct. 2025.
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