An agent involved in the exchange of messages or transactions.
A mediator between a buyer and seller.
A stockbroker.
A mediator in general, one who liaises between two or more parties to attempt to achieve an outcome of some kind.
To act as a broker; to mediate in a sale or transaction.
To act as a broker in; to arrange or negotiate.
An agent entrusted with the possession of goods to be sold in the agent's name.
A merchant earning a commission by selling goods belonging to others.
A person entrusted with a confidential task, often secretly to place a bet.