Definition of rejoinder noun from the Oxford Advanced American Dictionary

     

    rejoinder

     noun
    noun
    NAmE//rɪˈdʒɔɪndər//
     
    [usually singular](formal)
     
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  1. 1a reply, especially a quick, critical, or amusing one synonym retort
  2. 2 “No!” was his curt rejoinder.
See the Oxford Advanced Learner's Dictionary entry: rejoinder