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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.

"We already know that lots of families with disabled children are struggling financially. They're missing out on things like therapies, equipment and activities. We've got very real concerns about this."

From BBC • Apr. 5, 2026

Here is what we know based on public statements and media reports:

From Barron's • Apr. 5, 2026

Patton let Mauldin know that he had the authority to ban Stars and Stripes from being distributed to the Third Army.

From The Wall Street Journal • Apr. 5, 2026

Then she shares a delightful, fact-based piece of trivia like, “Hey, did you know that rats giggle when you tickle them?”

From Salon • Apr. 5, 2026

They know how I feel about you, how I feel about you, how I feel about you.

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

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