A purchase contract refers to an agreement that outlines the terms and conditions of a sale between two parties. However, there are various synonyms that can be used to describe a purchase contract. One of the popular synonyms for a purchase contract is a sales agreement. Other synonyms include a purchase agreement, a sale contract, and a buying agreement. Similarly, a purchase contract can also be referred to as a purchase order, a procurement agreement, or a sales contract. All these terms are used to describe a legal document that establishes the terms of a sale and purchase transaction. It is essential to use the right term when describing a purchase contract in order to avoid miscommunication.