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English definition of “rack sth up”

rack sth up

phrasal verb with rack     /ræk/ verb [T]
to gradually gain a large amount of something: The government and debt counsellors believe it is too easy to rack up large numbers of loans . The company's dozen vehicles rack up 144,000 miles a year . He'll rack up $10,000 in bonus money .rack sth up into sth Try to rack these small returns up into modest but consistently positive returns .
(Definition of rack sth up from the Cambridge Business English Dictionary © Cambridge University Press)
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