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

 

troublemaker

 noun
noun
BrE BrE//ˈtrʌblmeɪkə(r)//
 
; NAmE NAmE//ˈtrʌblmeɪkər//
 
 
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a person who often causes trouble, especially by involving others in arguments or encouraging them to complain about people in authority
See the Oxford Advanced American Dictionary entry: troublemaker