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Definitions

know

[noh] / noʊ /
VERB
understand information
Synonyms
STRONGEST
appreciate experience have learn notice perceive realize recognize see
STRONG
apperceive apprehend cognize comprehend differentiate discern discriminate distinguish fathom grasp ken prize undergo
WEAK
be acquainted be cognizant be conversant in be informed be learned be master of be read be schooled be versed feel certain get the idea have down pat have information have knowledge of keep up on on top of
Antonyms
STRONGEST
ignore miss misunderstand neglect overlook
STRONG
confuse mix up not get
WEAK
be ignorant forget misinterpret
VERB
be familiar with
Synonyms
STRONGEST
experience feel identify see
STRONG
associate fraternize savor sustain taste undergo
WEAK
be acquainted with be friends with get acquainted have dealings with
Antonyms
STRONG
abstain
WEAK
be ignorant forget misinterpret misunderstand

Usage

What are other ways to say know? To know something is to be aware of it as a fact or truth: He knows the basic facts of the subject. I know that he agrees with me. To comprehend is to know something thoroughly and to perceive its relationships to certain other ideas, facts, etc. To understand is to be fully aware not only of the meaning of something but also of its implications: I could comprehend all he said, but did not understand that he was joking.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pulido’s campaign manager said the singer didn’t previously know about the bandmate’s criminal history.

From The Wall Street Journal • Apr. 5, 2026

You don’t have to know any programming languages, just give the A.I. some vibes.

From Slate • Apr. 5, 2026

Glen Ger, 60, was more optimistic, saying the KMT would "let everyone know that public opinion isn't completely one-sided, so they can understand that people want peace".

From Barron's • Apr. 5, 2026

“I remember going around and just watching my shadow, because you never know who is behind you.”

From Los Angeles Times • Apr. 4, 2026

I desperately wanted to know what she’d done, but if it were possible to ask, I would have done it long ago.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.