ontology

noun

on·​tol·​o·​gy än-ˈtä-lə-jē How to pronounce ontology (audio)
1
: a branch of metaphysics concerned with the nature and relations of being
Ontology deals with abstract entities.
2
: a particular theory about the nature of being or the kinds of things that have existence
ontologist noun

Examples of ontology in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The result is a wildly original experience that moves beyond mere adaptation and tables fresh questions about cinema’s ontology. Zac Ntim, Deadline, 12 Feb. 2025 In computer science this is called ontology, or the process of formally naming the types, properties and relationships between entities. Carl Engelking, Discover Magazine, 27 Dec. 2019 In a very broad sense these disciplines push against our conceptions of ontology. Razib Khan, Discover Magazine, 31 Aug. 2010 Au’s is a book of deceptive simplicity, weaving profound questions of identity and ontology into the fabric of quotidian banality. Matthew Gavin Frank, Harper's Magazine, 21 Feb. 2022 See all Example Sentences for ontology 

Word History

Etymology

New Latin ontologia, from ont- + -logia -logy

First Known Use

1663, in the meaning defined at sense 1

Time Traveler
The first known use of ontology was in 1663

Dictionary Entries Near ontology

Cite this Entry

“Ontology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ontology. Accessed 21 Feb. 2025.

More from Merriam-Webster on ontology

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!