A document that lists the price, conditions and terms under which the buyer is willing to purchase the property. (Each of these means the same thing: offer to purchase, or purchase offer, or earnest money agreement, or contract of purchase, or deposit receipt.)

a contract between a buyer and a seller of real estate

The written agreement between the buyer and seller of a property, which stipulates the amount of the purchase, closing date and any repairs or other conditions that must be met before the transaction (purchase) is completed.