Definition of quash verb from the Oxford Advanced American Dictionary

     

    quash

     verb
    verb
    NAmE//kwɑʃ//
     
    Verb Forms present simple I / you / we / they quash
     
    ,
     
    he / she / it quashes
     
    ,
     
    past simple quashed
     
    ,
     
    -ing form quashing
     
    ,
     
     
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  1. 1 quash something (law) to officially say that a decision made by a court is no longer valid or correct synonym overturn His conviction was later quashed by the State Supreme Court.
  2. 2quash something to take action to stop something from continuing synonym suppress The rumors were quickly quashed.
See the Oxford Advanced Learner's Dictionary entry: quash