A Surplus

1. That which remains when use or need is satisfied, or when a limit is reached; excess; overplus.
2. Specifically, an amount in the public treasury at any time greater than is required for the ordinary purposes of the government.
3. (law) The remainder of a fund appropriated for a particular purpose.
4. (law) assets left after liabilities and debts, including capital stock have been deducted.

oversum

lack

deficit

shortage