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English definition of “theatre”

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theatre

noun uk UK ( US theater)   /ˈθɪə.tər/ us    /ˈθiː.ə.t̬ɚ/

theatre noun (BUILDING/ROOM)

A2 [C] a building, room, or outside structure with rows of seats, each row usually higher than the one in front, from which people can watch a performance or other activity: the Lyceum Theatre a lecture theatre [C] UK →  operating theatre
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theatre noun (PERFORMING ARTS)

[S or U] (the writing or performance of) plays, opera, etc., written to be performed in public: His latest play has delighted theatre audiences and theatre critics alike. She made her career in the theatre.
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theatre noun (BEHAVIOUR)

[U] behaviour that is not sincere and is intended just to produce a particular effect or to attract attention: Her tears were pure theatre.

theatre noun (MILITARY)

[C] an area or place in which important military events happen: a theatre of war
(Definition of theatre from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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