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

 

mocker

 noun
noun
BrE BrE//ˈmɒkə(r)//
 
; NAmE NAmE//ˈmɑːkər//
 
 
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a person who laughs at somebody/something in an unkind way, especially by copying what they say or do The cynics and the mockers and the doubters can say what they like.