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An entity is something that exists in itself, actually or potentially, concretely or abstractly, physically or not. It need not be of material existence. In particular, abstractions and legal fictions are usually regarded as entities. In general, there is also no presumption that an entity is animate. The word may refer, for example, to Bucephalus, the horse of Alexander; to a stone; to a cardinal number; to a language; or to ghosts or other spirits. The word ''entitative'' is the adjective form of the noun entity. Something that is entitative is considered in its own right. In philosophy, ontology is about the recognition of entities. The words ontic and entity are derived respectively from the ancient Greek and Latin present participles that mean 'being'. ==Specialized uses== * A DBMS ''entity'' is either a thing in the modeled world or a drawing element in an ERD. * In SUMO, ''Entity'' is the root node and stands for the universal class of individuals. * In VHDL, ''entity'' is the keyword for defining a new object. * An SGML ''entity'' is an abbreviation for some expanded piece of SGML text. * An open systems architecture ''entity'' is an active routine within a layer. * In computer games and game engines, ''entity'' is a dynamic object such as a non-player character or item. * In HTML, ''entity'' is a code snippet (e.g., "®" for "Registered Trademark") which is interpreted by web browsers to display special characters. See List of XML and HTML character entity references. * In law, a legal entity is an entity that is capable of bearing legal rights and obligations, such as a natural person or an artificial person (e.g. business entity or a corporate entity). * In politics, ''entity'' is used as term for territorial divisions of some countries (e.g. Bosnia and Herzegovina) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「entity」の詳細全文を読む スポンサード リンク
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