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English definition of “deceive”

deceive

verb [T] uk   /dɪˈsiːv/ us  
B2 to persuade someone that something false is the truth, or to keep the truth hidden from someone for your own advantage: The company deceived customers by selling old computers as new ones. The sound of the door closing deceived me into thinking they had gone out.
Synonym
Cheating and trickingPlotting and trapping
deceive yourself to refuse to accept the truth: She thinks he'll come back, but she's deceiving herself.Refusing and rejecting
deceiver
noun [C] uk   /-ˈsiː.vər/ us    /-ˈsiː.vɚ/
someone who deceives peopleDishonest peopleLies, lying and hypocrisyCheating and tricking
(Definition of deceive from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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