Definition of extravaganza noun from the Oxford Advanced Learner's Dictionary

 

extravaganza

 noun
noun
BrE BrE//ɪkˌstrævəˈɡænzə//
 
; NAmE NAmE//ɪkˌstrævəˈɡænzə//
 
 
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a large, expensive and impressive entertainment a musical extravaganza a five-day extravaganza of art, music and dance The parade was a real extravaganza. Word Origin mid 18th cent. (in the sense ‘extravagance in language or behaviour’): from Italian estravaganza ‘extravagance’. The change was due to association with words beginning with extra-.
See the Oxford Advanced American Dictionary entry: extravaganza