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English definition of “buy sth up”

buy sth up

phrasal verb with buy
 
 
/baɪ/ verb [T] (past tense and past participle bought)
to quickly buy a lot of something, often all that is available: Most of the land in the area has been bought up by property developers.Buying and selling in general
(Definition of buy sth up from the Cambridge Learners Dictionary © Cambridge University Press)
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