: the philosophical principle that one's existence is demonstrated by the fact that one thinks
: the intellectual processes of the self or ego

Examples of cogito in a Sentence

Recent Examples on the Web Played by Sandler as the cogito-ergo-sum of his ambitions, Howie is in many ways the human embodiment of that Furby, a soul held hopelessly in place by the transactional madness of his reality. Isaac Feldberg, Fortune, 23 Dec. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cogito.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


New Latin cogito, ergo sum, literally, I think, therefore I am, principle stated by René Descartes

First Known Use

1838, in the meaning defined at sense 1

Time Traveler
The first known use of cogito was in 1838

Dictionary Entries Near cogito

Cite this Entry

“Cogito.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

Love words? Need even more definitions?

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