Letters and spelling

Words with cogn built from the root meaning know

This list gathers words built from the Latin root cogn-, meaning to know. It includes everyday words like recognize and recognition as well as academic terms like cognizant and metacognition, making it useful for vocabulary study, test preparation, and anyone exploring how word roots connect meaning across many words.

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Words with cogn built from the root meaning know

Word	Meaning	In a sentence
cognitionnoun	The mental process of acquiring knowledge and understanding through thought, experience, and the senses.	Researchers study how sleep affects memory and other aspects of cognition.
cognitiveadjective	Relating to mental processes such as thinking, understanding, learning, and remembering.	The puzzle was designed to test cognitive skills like memory and reasoning.
cognizantadjective	Having knowledge or awareness of something, especially a fact, situation, or consequence.	Employees must be cognizant of the safety rules before operating heavy machinery.
cognizancenoun	Awareness or knowledge of something, especially as a basis for taking action.	The committee took cognizance of the new evidence before reaching its decision.
incognizantadjective	Not aware of or informed about something that is happening.	She remained incognizant of the rumors spreading about her resignation.
recognizeverb	To identify someone or something from previous knowledge or experience.	I almost didn't recognize her with her new haircut and glasses.
recognitionnoun	The act of identifying someone or something from previous knowledge, or formal acknowledgment of an achievement.	A flicker of recognition crossed her face when she saw her old classmate at the reunion.
recognizableadjective	Able to be identified easily as being known, familiar, or belonging to a particular type.	Even in disguise, his distinctive walk made him instantly recognizable to his friends.
unrecognizableadjective	Changed so much in appearance or character that a person or thing can no longer be identified.	After the renovation, the old kitchen was completely unrecognizable.
incognitoadverb	With one's true identity concealed, using a false name or disguise to avoid recognition.	The celebrity traveled incognito, wearing sunglasses and a plain baseball cap.
cognateadjective	Related in origin, especially describing a word that shares a common linguistic ancestor with a word in another language.	"Night" in English and "Nacht" in German are cognate words from a shared root.
precognitionnoun	The supposed ability to know about an event before it happens, especially through paranormal means.	The novel's protagonist claims to have precognition of coming natural disasters.
metacognitionnoun	Awareness and understanding of one's own thought processes, including how one learns and solves problems.	Teaching metacognition helps students recognize which study strategies work best for them.
cognoscentinoun	People who are especially well informed about a particular subject, especially the arts or fashion.	The gallery opening drew the art cognoscenti from across the city.
cognitive biasnoun	A systematic error in thinking that affects judgments and decisions, often based on flawed assumptions or mental shortcuts.	Confirmation bias is a common cognitive bias that leads people to favor information supporting their beliefs.
cognitive dissonancenoun	The mental discomfort felt when holding two contradictory beliefs, values, or attitudes at the same time.	She felt cognitive dissonance after criticizing waste while buying more than she needed.
cognitive sciencenoun	The interdisciplinary study of the mind and how it processes information, drawing on psychology, linguistics, neuroscience, and computer science.	Cognitive science combines insights from psychology and computer science to model how people think.
cognitive loadnoun	The total amount of mental effort being used in working memory at a given time.	Too many on-screen instructions increase cognitive load and slow down learning.
cognitive declinenoun	A gradual loss of mental abilities such as memory, reasoning, or attention, often associated with aging or illness.	Regular exercise may help slow cognitive decline in older adults.
cognitive developmentnoun	The process by which a person's thinking, reasoning, and understanding grow and change, especially during childhood.	Piaget's theory of cognitive development describes distinct stages children pass through.

What does the root cogn- mean?

The root cogn- comes from the Latin word cognoscere, meaning to know or to learn. It appears in everyday words like recognize, which means to know again, and in academic terms like cognitive and metacognition, which describe thinking and awareness. Spotting this root can help learners work out the meaning of unfamiliar words that relate to knowledge, memory, or thought.

Frequently asked questions

What does the root cogn mean in English words?

Cogn comes from Latin and means to know, as seen in words like cognition, recognize, and cognizant.