Anentity is something thatexists as itself. It does not need to be of material existence. In particular,abstractions andlegal fictions are usually regarded as entities. In general, there is also no presumption that an entity isanimate, orpresent. The verb tense of this form is to 'entitize' - meaning to convert into an entity; to perceive as tangible or alive.[1]
The term is broad in scope and may refer to animals; natural features such as mountains; inanimate objects such as tables; numbers or sets as symbols written on a paper; human contrivances such as laws, corporations and academic disciplines; orsupernatural beings such as gods and spirits.
The wordentity is derived from the Latinentitas, which in turn derives from the Latinens meaning "being" or "existing" (compare Englishessence).Entity may hence literally be taken to mean "thing which exists".
Ontology is the study of concepts of existence, and of recognition of entities. The words ontic and entity are derived respectively from the ancient Greek and Latin present participles that mean "being".
In an ontic inquiry... one asks about the properties or the physical relations and structures peculiar to some entity – in the pen's case, for example, we might make the following ontic observations about it: it is black, full of blue ink, and sitting on top of my desk.[2]
In medicine, adisease entity is an illness due to a particular definite cause or to a specific pathological process. While a disease entity is not defined by asyndrome, it may or may not be manifest in one or more particular syndromes.
Incomputer science, an entity is anobject that has anidentity, which is independent of the changes of itsattributes. It represents long-lived information relevant for the users and is usually stored in adatabase.