Commission merchant refers to a person or business who earns a commission by buying and selling goods or products on behalf of someone else. There are several synonyms for the term, including commission agent, consignment dealer, representative, middleman, broker, and intermediary. A commission agent is someone who acts as an intermediary between sellers and buyers and earns a commission based on the sales made. A consignment dealer works with suppliers to sell goods on a commission basis. Representatives work on behalf of a company to sell goods or services and receive a commission. A middleman is a person who facilitates a transaction between two parties and earns a commission for doing so. Brokers and intermediaries operate in a similar way, mediating between buyers and sellers to facilitate a transaction.