- 1[uncountable] the act of deliberately making someone believe something that is not true (= of deceiving them) synonym deceit a drama full of lies and deception He was accused of obtaining property by deception.
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- 2[countable] a trick intended to make someone believe something that is not true synonym deceit The whole episode had been a cruel deception. deceive verbdeceit noundeceitful adjectivedeception noundeceptive adjective
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