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English definition of “rack sth up”

rack sth up

phrasal verb with rack     /ræk/ verb [T often passive]
mainly US informal to gradually get more points, profits, etc.: He has racked up 450 points in three months. Astronomical profits/losses were racked up by airlines last year. → Synonym accumulateIncreasing and intensifying to increase something such as a rent or price, especially by an amount that is considered to be too much: Our landlord racked up the rent by 15 percent this year.Increasing and intensifyingValue and price increases
(Definition of rack sth up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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