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English definition of “build up (sth)”

build up (sth)

phrasal verb with build     /bɪld/ verb (built, built)
[I or T] to increase in quantity , or to add more of something so it increases in quantity : build up shares/stock/wealth At this time of year , stores are building up stock for Christmas .build up experience/success/achievements She joined the company in 2000 and has built up considerable experience in marketing .
(Definition of build up (sth) from the Cambridge Business English Dictionary © Cambridge University Press)
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