cognition

noun

cog·​ni·​tion käg-ˈni-shən How to pronounce cognition (audio)
Synonyms of cognition
: cognitive mental processes
A concussion impaired the patient's cognition.
also : a product of these processes
cognitional adjective

Examples of cognition in a Sentence

disabilities affecting cognition and judgment
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.
This vast ecosystem of bacteria and microorganisms within our intestines shapes our health in profound ways that go well beyond digesting food — our immune system, mood, cognition, metabolism and much more. Will Stone, NPR, 22 June 2026 Grief mangles cognition and memory in ways that can make even banal tasks feel surreal, if not impossible. Amanda Petrusich, New Yorker, 22 June 2026 Consistent daily movement improves cardiovascular function, sleep, cognition, and mood. Ezekiel J. Emanuel, Fortune, 21 June 2026 Every major information system in modern society was built around human cognition and human communication. Sreedhar Potarazu, Baltimore Sun, 20 June 2026 See All Example Sentences for cognition

Word History

Etymology

Middle English cognicioun "comprehension, ability to comprehend," borrowed from Anglo-French & Latin; Anglo-French cognicion "knowledge, jurisdiction," borrowed from Latin cognitiōn-, cognitiō "act of getting to know, comprehension, investigation," from cogni-, variant stem of cognōscere "to get to know, acquire knowledge of, become acquainted with, investigate" (from co- co- + gnōscere, nōscere "to get to know," inchoative derivative from Indo-European *ǵneh3-, *ǵṇh3- "to know, recognize") + -tiōn-, -tiō, suffix of action nouns — more at know entry 1

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of cognition was in the 15th century

Browse Nearby Words

Cite this Entry

“Cognition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cognition. Accessed 23 Jun. 2026.

Kids Definition

cognition

noun
cog·​ni·​tion käg-ˈnish-ən How to pronounce cognition (audio)
: the act or process of knowing

Medical Definition

cognition

noun
cog·​ni·​tion käg-ˈnish-ən How to pronounce cognition (audio)
1
: cognitive mental processes
2
: a conscious intellectual act
conflict between cognitions
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