Nonrevenue refers to a financial term describing operations and activities that do not generate revenue. There are several synonyms for nonrevenue, including non-profit, loss leader, no-charge, gratis, gratis, and costless. These synonyms can be applied in various contexts, such as in business, aviation, and railways, where they are used to identify services and products that do not generate revenue. Nonprofit is perhaps the most common synonym for nonrevenue because of its popularity in the business environment. It implies that the activities are not focused solely on generating profits, but rather aim to achieve other goals, such as those of social or humanitarian importance.