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English definition of “polish sth up”

polish sth up

verb [T] uk phrasal verb with polish   /ˈpɒl.ɪʃ/ us    /ˈpɑː.lɪʃ/

(OBJECT)

to rub or brush an object to make it shine, especially a metal or wooden object: Robert was polishing up some old silver candlesticks.Polishing and polishes

(SKILL)

to improve a skill, especially when you have allowed it to become less good over a period of time: I really must polish up my Japanese before we visit Japan next year.Making things betterBecoming better
(Definition of polish sth up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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