Ontology - Wikipedia, the free encyclopedia: "Ontology
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This article is about ontology in philosophy. For the term in computer science, see ontology (computer science).
In philosophy, ontology (from the Greek ὤν, genitive ὄντος: of being (part. of εἶναι: to be) and -λογία: science, study, theory) is the study of being or existence and forms the basic subject matter of metaphysics. It seeks to describe or posit the basic categories and relationships of being or existence to define entities and types of entities within its framework."