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English definition of “perk up”

perk up

phrasal verb with perk     /pɜːk/ US  /pɝːk/ verb [I or T] informal
to improve or become more exciting : Share prices perked up slightly before the close of trading .Becoming betterMaking things betterMaking progress and advancingMaking things betterBecoming better
(Definition of perk up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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