An amount of something that is more than necessary, permitted, or desirable. The excess of sugar in the diet can lead to health problems.
The action of exceeding a limit or amount. The excess of speed on the highway resulted in a fine.
Behavior that is considered extreme or immoderate. His excesses during the party were the talk of the town.
The deductible portion of an insurance claim to be paid by the insured before the insurer covers the remainder (chiefly British). The policy carries a £200 excess on accidental damage.