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noun American English pronunciation: theater /ˈθiətər/ 
Word Forms
  1. 1
    [countable] a building, room, or outside area used for performing plays

    Abraham Lincoln was shot in Ford's Theater in 1865.

    an open-air theater

    go to the theater:

    We're going to the theater on Saturday.

    1. a.
      American a building, room, or outside area used for showing movies
      movie theater:

      We met outside the movie theater.

  2. 2
    [uncountable] plays considered as a form of entertainment or art

    a compelling piece of theater

    the theater:

    I've always loved the theater.

  3. 3
    [uncountable] the activity of writing, performing, or organizing performances of plays

    Jenny wanted to pursue a career in the theater.

    a traveling theater company

  4. 5
    [countable] an area where there is fighting during a war

    commander of the theater of operations


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