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English definition of “blackmail”

blackmail

noun [U] uk   /ˈblæk.meɪl/ us  
C2 the act of getting money from people or forcing them to do something by threatening to tell a secret of theirs or to harm them: In a position of authority, any weakness leaves you open to blackmail.Fraud and corruption

blackmail

verb [T] uk   /ˈblæk.meɪl/ us  
C2 to get money from someone by blackmail: They used the photographs to blackmail her into spying for them.Cheating and trickingPlotting and trapping
blackmailer
noun [C] uk   /-ˌmeɪ.lər/ us    /-ˌmeɪ.lɚ/
Miscellaneous criminals
(Definition of blackmail from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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