costar

noun

  1. 1

    A person who shares star billing

    The once famous actor objected to his costar having a bigger dressing room.
  2. 2

    A person who slightly lacks the status to be considered a star

    Alas, always a costar but never a star.

verb

  1. 1

    To perform with the billing of a costar.

    People thought his career was over but now he will get to costar on Broadway next month.

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