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English definition of “patch”

patch

noun [C]     /pætʃ/
IT a small computer program that can repair a problem with software : You can download a patch to fix the problem .
go through/hit a bad/difficult/rough patch informal to experience a lot of problems in a short period of time : Economically , the country is going through a bad patch. The company hit a rough patch last year , which included its first quarterly loss since going public .
(Definition of patch noun from the Cambridge Business English Dictionary © Cambridge University Press)
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