Entity
Part of speech: noun
Definition: That which has a distinct existence as an individual unit. Often used for organisations which have no physical form. An existent something that has the properties of being real, and having a real existence. An organized array or set of individual elements or parts. The state or quality of being or existence.
Identity
Part of speech: noun
Definition: The sameness some individuals share to make up the same kind or universal.The difference or character that marks off an individual from the rest of the same kind, selfhood.A name or persona—the mask or appearance one presents to the world—by which one is known.Knowledge of who one is.Any function which maps all elements of its domain to themselves.An element of an algebraic structure which, when applied to another element under an operation in that structure, yields this, second element.