amazon seller. An Amazon seller refers to an individual or company that uses the Amazon marketplace to sell products. Sellers can list their products, manage inventory, process orders, and interact with customers through Amazon Seller Central. Amazon offers two types of seller accounts: Individual and Professional. The Individual plan is for those who sell fewer than 40 items per month, while the Professional plan is designed for high-volume sellers. Becoming an Amazon seller allows businesses to tap into Amazon’s vast customer base and leverage the platform’s logistics, customer service, and fulfillment services to scale operations quickly.