As surplus refers to having an excess of something beyond what is needed or required. Some synonyms for this term include extras, leftovers, overages, excesses, surfeit, abundance, and superfluity. These words convey a similar meaning of having more than necessary, and can be used interchangeably depending on the context. For example, a grocery store may have surplus produce that they sell as extras or leftovers at a discount. A business may have overages of inventory that they need to liquidate. And an individual may have a surplus of money that they can use to invest or save. Overall, these synonyms for as surplus provide options for communicating the same idea in different ways.