From Longman Dictionary of Contemporary Englishsellersell‧er /ˈselə $ -ər/ ●●○ noun [countable] 1 BBTSELLsomeone who sells something OPP buyer2 → good/bad/poor etc seller
Examples from the Corpus
seller• Both buyer and seller should agree on the terms before the contract is signed.• Who remembers most of yesterday's best sellers?• They are hidden because such taxes are typically shifted by sellers to consumers through higher product prices.• Monopolists are not regulated by the will of society as are competitive sellers.• So Dall became the seller, although he actually needed to buy.• The seller thus wants to make acceptance as quick, simple and decisive as possible.• The sellers may act as trustees for sale, and sell in that capacity.From Longman Business Dictionarysellersell‧er /ˈselə-ər/ noun [countable]1COMMERCEa person or organization that sells somethingMost sellers use an estate agent to set a price and advertise the property.seller ofIn the UK sellers of alcohol must be at least 18.2good/bad/big etc sellerMARKETING a product that sells well or badlyThe book is among the 10top sellers of all time.Frozen yoghurt has been a big seller over the past two years. → see also BEST-SELLER, bookseller 