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English definition of “presuppose”

presuppose

verb [T]  /ˌpri·səˈpoʊz/ fml us  
to think that something is true in advance without having any proof, or to consider that something is necessarily true if something else is true: [+ that clause] You’re presupposing that he told her – but he may not have. Teaching presupposes a formal education.
(Definition of presuppose from the Cambridge Academic Content Dictionary © Cambridge University Press)
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