a person who sells something 卖者；销售者；卖方 - a good, poor, etc. seller
a product that has been sold in the amounts or way mentioned （畅销、滞销等的）商品
Idioms
a seller’s market
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 卖方市场 In a seller’s market, demand exceeds supply, and prices are high. 在卖方市场，需求大于供给，价格很高。