theatre
noun (especially US theater)
ˈθɪətə(r) 
ˈθiːətər 
1 [countable] a building or an outdoor area where plays and similar types of entertainment are performedBroadway theatresan open-air theatreHow often do you go to the theatre? see also lecture theatre2 (also movie theater) (both North American English) (British English cinema) [countable] a building in which films/movies are shown3 [uncountable] plays considered as entertainmentan evening of live music and theatre (British English) I like music, theatre and cinema.current ideas about what makes good theatre (= what makes good entertainment when performed)4 [uncountable] also the theatre [singular] the work of writing, producing and acting in playsI want to work in theatre.He was essentially a man of the theatre.5 [countable, uncountable] (British English) = operating theatrea theatre sister (= a nurse who helps during operations)He's still in theatre.6 [countable, usually singular] theatre (of war, etc.) (formal) the place in which a war or fighting takes placean intelligence officer in the Pacific theatre