# cogito

> English word · Noun · frequency rank #89,242

## Definitions
1. The argument "cogito, ergo sum" ("I think therefore I am") from the philosophy of René Descartes; the mental act of thinking this thought; a conscious being which performs this mental act.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/cogito