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English definition of “cover sth up”

cover sth up

verb uk phrasal verb with cover   /ˈkʌv.ər/ us    //
C2 to stop people discovering the truth about something bad: The company tried to cover up its employment of illegal immigrants.Secrecy and privacy
(Definition of cover sth up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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