Definition of blockbuster noun from the Oxford Advanced American Dictionary

 

blockbuster

 noun
noun
NAmE//ˈblɑkˌbʌstər//
 
(informal)
 
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something very successful, especially a very successful book or movie a Hollywood blockbuster
blockbusting
 
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adjective a blockbusting performance
See the Oxford Advanced Learner's Dictionary entry: blockbuster