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  1. Ontology - Wikipedia

    Ontology is the philosophical study of being. It is traditionally understood as the subdiscipline of metaphysics focused on the most general features of reality. As one of the most fundamental …

  2. Ontology | Definition, History & Examples | Britannica

    ontology, the philosophical study of being in general, or of what applies neutrally to everything that is real. It was called “first philosophy” by Aristotle in Book IV of his Metaphysics.

  3. Ontology and Information Systems - Stanford Encyclopedia of …

    Jan 3, 2026 · In philosophy, the field of ontology is often described as “the study of what there is” (see the entries on social ontology, logic ontology and natural language ontology).

  4. ONTOLOGY Definition & Meaning - Merriam-Webster

    The meaning of ONTOLOGY is a branch of metaphysics concerned with the nature and relations of being. How to use ontology in a sentence.

  5. What is Ontology? | The Ontology Research & Development Network

    What is Ontology? Ontology is the philosophical study of being, existence, and reality. In information science, an ontology is a formal representation of knowledge as a set of concepts within a domain …

  6. Ontology: Theory and History

    Pure philosophical ontology is different from applied scientific ontology, and ontology in the applied scientific sense can be understood either as a discipline or a domain.

  7. ontology - The University of Warwick

    In brief, ontology, as a branch of philosophy, is the science of what is, of the kinds and structures of objects. In simple terms, ontology seeks the classification and explanation of entities.

  8. Exploring Ontology: A Comprehensive Overview - Philosophos

    Dec 17, 2025 · Ontology is a branch of philosophy that deals with the nature of being and the relationship of entities to one another. It is also closely related to metaphysics, as it seeks to …

  9. What is Ontology? – National Center for Ontological Research

    What is Ontology? Contemporary ontology is a partnership of multiple disciplines. On the one hand ontological research involves philosophers who are concerned to describe broad categories of …

  10. Ontology: Explanation and Examples - Philosophy Terms

    Ontology is generally considered to be a sub-field of metaphysics. Metaphysics has many definitions, but it means something like “the study of the fundamental nature of reality.”