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co-star

British  

noun

  1. an actor who shares star billing with another

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to share star billing (with another actor)

  2. (tr) to present as sharing top billing

    the film co-starred Mae West and W. C. Fields

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Speaking of Holmes, “Sherlock” co-creator and co-star Mark Gatiss is up to it again, this time in the leading role.

From Los Angeles Times • Jun. 8, 2026

Fun fact: Hamm’s “Mad Men” co-star John Slattery also appears in the movie, which is a riff on “The Wizard of Oz.”

From The Wall Street Journal • Jun. 6, 2026

The Python on the Prom campaign, launched by Michael Palin and Terry Gilliam last summer, paid for the statue of their co-star.

From BBC • May 20, 2026

Diesel and Rodriguez posed with fellow actor Jordana Brewster and the daughter of late co-star Paul Walker, who died in a car crash in 2013, at the French film festival Wednesday.

From Barron's • May 13, 2026

When I think about Mom’s stories—the thrilling tales about her years at Princeton—Jack was usually her co-star.

From "South of Somewhere" by Kalena Miller

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