from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A starring actor or actress given equal status with another or others in a play or film.
  • transitive v. To act or present as a costar.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A person who shares star billing.
  • n. A person who slightly lacks the status to be considered a star.
  • v. To perform with the billing of a costar.


from Wiktionary, Creative Commons Attribution/Share-Alike License

co- +‎ star


  • Mi idea es que los tamales se preparan por muchas razones, entre ellas: 1) rinden bastante; 2) ya que estén preparados, los que lleguen pueden comer a gusto sin costar más trabajo a los familiares y se pueden dedicar a los rezos.


  • If the 3 Series is the star of the commercial, then the costar is the Gravity Slider -- the revolutionary camera rig created especially for the BMW shoot.

    Harmon Leon: BMW 3 Series: Meet the Gravity Slider Rig

  • "Spartacus" is a flashy, big-budget attempt to forge a brand, complete with a big-name costar (Lucy Lawless, erstwhile heroine of the syndicated "Xena: Warrior Princess") and the heavily stylized, comic-book-like use of green-screen technology familiar from movies like "300" and "Sin City." RSS

  • She is best known as the costar, alongside teen dreamboats the Jonas Brothers, of the Disney TV movie Today's Latest Headlines

  • Adds his British-born costar, We had about eight days from when I got the role to shooting.

    Lifetime Prepares for the Royal Wedding with William & Kate

  • Getty Images The show's creator and costar, Mike White.

    White Stays Positive Onscreen and Off

  • She won't have to deal with those Anthony rumors anymore -- he was her costar on the show.

    'HawthoRNe' Canceled: Jada Pinkett Smith Show Canceled

  • Maybe NBC should sign Timberlake and Gaga to costar in an old-time variety-show together — they could be the Sonny and Cher of the 21st century.

    Cheers & Jeers: SNL — Gaga for a Lady

  • Levi grabbed a microphone to lip-synch along to Britney Spears' "Hold It Against Me" — just one of the many tunes spun by an on-set DJ — while Favorite Villain costar and onetime James Bond Timothy Dalton gamely pelted him with maraschino cherries and even drank champagne out of a Giuseppe Zanotti stiletto.

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  • Brian Austin Green is suing his former Beverly Hills, 90210 costar -- and the mother of his son -- Vanessa Marcil-Giovinazzi, according to TMZ.

    Brian Austin Green Sues Ex Vanessa Marcil-Giovinazzi


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