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ostracize

(also UK -ise)
 
 
/ˈɒstrəsaɪz/ verb [T]

Definition

When a group of people ostracizes someone, they refuse to talk to or do things with that person: [often passive] He was ostracized by the other children at school.
(Definition of ostracize verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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