- 1a person who sells something a flower seller The law is intended to protect both the buyer and the seller. see bookseller compare vendor
- 2a good, poor, etc. seller a product that has been sold in the amounts or way mentioned This particular model is one of our biggest sellers. see best seller Idioms
a situation in which people selling something have an advantage, because there is not a lot of a particular item for sale, and prices can be kept high
Check pronunciation: seller