1. an amount that is more than what is needed; a surplus or excess
Usage: formal; somewhat archaic

Examples

• The overplus of grain was stored in the warehouse for next season.
• After paying all expenses, there was a small overplus in the budget.
• The company donated the overplus of supplies to local charities.
• We calculated an overplus of materials after completing the project.
• The overplus from the harvest allowed the farmers to sell at market.
• Any overplus of funds will be returned to the investors.