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English definition of “suppress”

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suppress

verb [T] uk   /səˈpres/ us  

suppress verb [T] (END BY FORCE)

C2 to end something by force: The Hungarian uprising in 1956 was suppressed by the Soviet Union.

suppress verb [T] (PREVENT)

C2 to prevent something from being seen or expressed or from operating: She couldn't suppress her anger/annoyance/delight. His feelings of resentment have been suppressed for years. The government tried to suppress the book because of the information it contained about the security services. The virus suppresses the body's immune system.
suppression
noun [U] uk   /-ˈpreʃ.ən/ us  
brutal police suppression of the riots suppression of evidence/emotions/free speech, etc.
(Definition of suppress from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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