Synonym: annul, avoid, invalidate, keep down, nullify, reduce, repress, subdue, subjugate, void. Similar words: squashed, quasi, persuasion, persuasive, persuasively, ash, ashes, dash. Meaning: [kwɑʃ /kwɒʃ] 
v. 1. put down by force or intimidation 2. declare invalid.
v. 1. put down by force or intimidation 2. declare invalid. 
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31. The authorities acted quickly to quash the student rebellion, sending in tanks to cow the demonstrators.
32. Since I knew Gauleiter Sturtz of Brandenburg quite well , I was able to quash the affair.