Noah Webster's New International Dictionary of the English Language
1. (n.) An agreement between parties concerning the sale of property; or a contract by which one party binds himself to transfer the right to some property for a consideration, and the other party binds himself to receive the property and pay the consideration.
2. (n.) An agreement or stipulation; mutual pledge.
3. (n.) A purchase; also (when not qualified), a gainful transaction; an advantageous purchase; as, to buy a thing at a bargain.
4. (n.) The thing stipulated or purchased; also, anything bought cheap.
5. (n.) To make a bargain; to make a contract for the exchange of property or services; -- followed by with and for; as, to bargain with a farmer for a cow.
6. (v. t.) To transfer for a consideration; to barter; to trade; as, to bargain one horse for another.