reinvent the wheel Meaning in the Cambridge English Dictionary
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Meaning of “reinvent the wheel” in the English Dictionary

"reinvent the wheel" in British English

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reinvent the wheel

to ​wastetimetrying to ​create something that someone ​else has already ​created
(Definition of reinvent the wheel from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"reinvent the wheel" in American English

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reinvent the wheel

to ​wastetimelearning how to do something when it is already ​known how to do it: We don't need to reinvent the ​wheel, we just need to ​hire someone who already ​knows how to make the ​systemwork.
(Definition of reinvent the wheel from the Cambridge Academic Content Dictionary © Cambridge University Press)
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