something that has a real existence; thing: corporeal entities.
2.
being or existence, especially when considered as distinct, independent, or self-contained: He conceived of society as composed of particular entities requiring special treatment.
3.
essential nature: The entity of justice is universality.
Origin: 1590–1600; < Medieval Latin entitās, equivalent to enti- (stem of ēns), present participle of esse to be + -tās-ty2
1596, from M.L. entitatem (nom. entitas), from L. ens (gen. entis), proposed by Caesar as prp. of esse "be" (see is), to render Gk. philosophical term to on "that which is."
database In an entity-relationship model, an entity is a type of thing being modeled such as "person" or "product". Different entities have different sets of attributes such as "name" or "price" and are connected via relationships like "bought". Entities are closely related to classes (class). (2009-11-22)