Earnest Money
Money put down by a potential buyer to show that he or she is serious about purchasing the home; it becomes part of the down payment if the offer is accepted, is returned if the offer is rejected, or is forfeited if the buyer pulls out of the deal.
Source: U.S. Department of Housing and Urban Development
A deposit in the form of cash or a note given to a seller by a buyer as good faith assurance that the buyer intends to go through with the purchase of a property.
Source: Ginnie Mae