Definition of ostracize verb from the Oxford Advanced American Dictionary

     

    ostracize

     verb
    verb
    NAmE//ˈɑstrəˌsaɪz//
     
    ostracize somebody(formal)Verb Forms present simple I / you / we / they ostracize
     
    he / she / it ostracizes
     
    past simple ostracized
     
    -ing form ostracizing
     
     
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  1. 1to refuse to let someone be a member of a social group; to refuse to meet or talk to someone synonym shun
  2. 2 He was ostracized by his colleagues for refusing to support the strike.
See the Oxford Advanced Learner's Dictionary entry: ostracize