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English definition of “long”

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long

adverb
 
 
/lɒŋ/ FINANCE, STOCK MARKET
go long (on sth) FINANCE, STOCK MARKET to buy or keep shares, etc. because you expect their price to rise, so that you can make a profit: The prospects for domestic demand growth in the eurozone are not great, so why not go long on sterling, where the prospects for domestic demand growth are still looking optimistic? →  Compare short adjective →  See also long position , longs
(Definition of long adverb from the Cambridge Business English Dictionary © Cambridge University Press)
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