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English definition of “upgrade”

upgrade

noun [C]     /ˈʌp.ɡreɪd/
B2 a piece of software or equipment that improves the quality or usefulness of a computer or machine: a hardware upgrade The upgrade to version 5.0 costs $395.Making things betterBecoming better
(Definition of upgrade noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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