An agreement between parties (usually arrived at after discussion) fixing obligations of each WordNet 3.0 & Open English WordNet

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. Wiktionary

Agreement or contract concerning sale of property. Wiktionary (translation)

An agreement between parties; an arrangement. Wiktionary

Agreement, arrangement. Wiktionary (translation)