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
Tommy McArdle, PEOPLE, 29 Oct. 2025
Modern Family costars Julie Bowen and Ty Burrell snapped a selfie together while watching the college football match.
—Daysia Tolentino, Entertainment Weekly, 27 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
Williams costars with Mckenna Grace, Dave Franco and Mason Thames in Regretting You, an adaptation of author Colleen Hoover's 2019 novel of the same name.
—Tommy McArdle, PEOPLE, 29 Oct. 2025
Modern Family costars Julie Bowen and Ty Burrell snapped a selfie together while watching the college football match.
—Daysia Tolentino, Entertainment Weekly, 27 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 31 Oct. 2025.
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