Terminology Tuesday: Ontology
The study of being. Ontology is often considered to be equivalent to metaphysics, but some thinkers, such as Martin Heidegger, have viewed ontology as a quest to understand the meaning of being, in contrast to metaphysics as inquiry about specific types of entities.
Evans, C. S. (2002). Pocket Dictionary of Apologetics & Philosophy of Religion (p. 85). Downers Grove, IL: InterVarsity Press.