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English definition of “bully”

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bully

noun [C] uk   /ˈbʊl.i/ us  
C1 someone who hurts or frightens someone who is smaller or less powerful, often forcing them to do something that they do not want to do: You're just a big bully! Teachers usually know who the bullies are in a class.
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bully

verb [T] uk   /ˈbʊl.i/ us  
C1 to hurt or frighten someone who is smaller or less powerful than you, often forcing that person to do something they do not want to do: Our survey indicates that one in four children is bullied at school. Don't let anyone bully you into doing something you don't want to do.
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bullying
noun [U] uk   /-ɪŋ/ us  
Bullying is a problem in many schools.
(Definition of bully from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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