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English definition of “make sth up”

make sth up

(INVENT) phrasal verb with make     /meɪk/ verb (made, made)
B2 to invent something, such as an excuse or a story , often in order to deceive : I made up an excuse about having to look after the kids . My dad was always really good at making up stories .Lies, lying and hypocrisyDishonest people
(Definition of make sth up (INVENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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