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

 

buzzword

 noun
noun
BrE BrE//ˈbʌzwɜːd//
 
; NAmE NAmE//ˈbʌzwɜːrd//
 
 
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a word or phrase, especially one connected with a particular subject, that has become fashionable and popular and is used a lot in newspapers, etc.
See the Oxford Advanced American Dictionary entry: buzzword