Entity/ˈentəti/ Definition 1 of 4Pro Tip 1/3Independence Emphasis Use 'entity' to stress that something operates independently. The university is an autonomous entity within the city. Pro Tip 2/3Not Always Physical An entity doesn't always have to be physical; it can be conceptual. Happiness can be considered an abstract entity. Pro Tip 3/3Personification Sometimes non-human things are described as 'entities' to personify them. The storm system is a fast-moving entity.