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English definition of “best-selling”

best-selling

adjective [before noun] (also bestselling)
 
 
/ˌbesˈselɪŋ/ COMMERCE
extremely popular and selling in very large numbers: the best-selling brand in the country a best-selling book/game/phone
producing books, songs, etc. that are extremely popular and have sold in large quantities: a best-selling author/artist
(Definition of best-selling from the Cambridge Business English Dictionary © Cambridge University Press)
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