From Longman Dictionary of Contemporary Englishtheatregoerthea‧tre‧go‧er British English, theatergoer American English /ˈθɪətəˌɡəʊə $ -tərˌɡoʊər/ noun [countable] APTsomeone who regularly watches plays at the theatre
Examples from the Corpus
theatregoer• It is a very beautiful building which works wonderfully well for the theatregoer. 