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
Rachel McRady, People.com, 15 July 2025
Last year, Pinchot opened up about his enduring relationship with his old costar.
—Ryan Coleman Published, EW.com, 14 July 2025
Cara Lynn Shultz, People.com, 11 July 2025
Producers of the movie version of the story, which costars Jason Isaacs and Gillian Anderson, said in their statement to EW the issue was not theirs.
—Raechal Shewfelt, EW.com, 8 July 2025
See All Example Sentences for costar
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Noun
When Daly showed a photo of costars Sarah Michelle Gellar and Freddie Prinze Jr. posing together on the red carpet in 2025 and the original red carpet in 1997, Savannah Guthrie quickly chimed in.
—Rachel McRady, People.com, 15 July 2025
Last year, Pinchot opened up about his enduring relationship with his old costar.
—Ryan Coleman Published, EW.com, 14 July 2025
Verb
The film, which also costars Jesse Plemons and Riz Ahmed, is due in theaters October 2026.
—Cara Lynn Shultz, People.com, 11 July 2025
Producers of the movie version of the story, which costars Jason Isaacs and Gillian Anderson, said in their statement to EW the issue was not theirs.
—Raechal Shewfelt, EW.com, 8 July 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 21 Jul. 2025.
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