seller noun sell· er ?se-l?r 1 : one that offers for sale 2 : a marketed product that sells well, to a specified extent, or in a specified manner a million-copy seller a poor seller Synonyms broker dealer merchandiser vendor vender See all Synonyms & Antonyms in Thesaurus Example Sentences The seller said that the car was in excellent condition.The seller is someone who already owns the asset or security and wishes to get rid of it. Someo? In short selling, a position is opened by borrowing shares of a stock or other asset that the investor believes will decrease in value. The investor then sells these borrowed shares to buyers who are willing to pay the market price.Werden Sie Amazon-Verkaufspartner und profitieren Sie von potenziellen Vorteilen im Wert von über 45,000 ?! Starten Sie noch heute Ihre Marke mit Amazon DE!