variants
or co-star
plural costars or co-stars
: one of two or more main performers who star in a motion picture, 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 motion picture, play, etc.
Directed by Lasse Hallström … and costarring a fine ensemble …—Leonora Langley
Leonora Langley2
intransitive
: to appear with another star in a motion picture, play, etc.
Examples of costar in a Sentence
Recent Examples on the WebJulia Moore, Peoplemag, 9 Aug. 2024
The show will feature the two starring alongside Hall's first ex-husband and former Flip or Flop costar, Tarek El Moussa, and his current wife, Selling Sunset alum Heather Rae El Moussa, as the duos compete against each other flipping homes.
—Lester Fabian Brathwaite, EW.com, 9 Aug. 2024
Adam B. Vary, Variety, 10 Aug. 2024
Several stars not involved in the film were there to support Kravitz, including her Big Little Lies costars Reese Witherspoon and Laura Dern.
—Brendan Le, Peoplemag, 9 Aug. 2024
See all Example Sentences for costar 
Noun
Witherspoon told Vanity Fair of the aftermath of her costar's comments.
—Julia Moore, Peoplemag, 9 Aug. 2024
The show will feature the two starring alongside Hall's first ex-husband and former Flip or Flop costar, Tarek El Moussa, and his current wife, Selling Sunset alum Heather Rae El Moussa, as the duos compete against each other flipping homes.
—Lester Fabian Brathwaite, EW.com, 9 Aug. 2024
Verb
The film costars Jodie Turner-Smith, Gillian Anderson, Hasan Minaj, Arturo Castro, Cameron Monaghan and Sarah Desjardins.
—Adam B. Vary, Variety, 10 Aug. 2024
Several stars not involved in the film were there to support Kravitz, including her Big Little Lies costars Reese Witherspoon and Laura Dern.
—Brendan Le, Peoplemag, 9 Aug. 2024
See all Example Sentences for costar
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'costar.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near costar
Cite this Entry
“Costar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/costar. Accessed 18 Aug. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share