1
2
a
: to be aware of the truth or factuality of : be convinced or certain of
b
: to have a practical understanding of
knows how to write
3
archaic
: to have sexual intercourse with
1
: to have knowledge
2
: to be or become cognizant
—sometimes used interjectionally with you especially as a filler in informal speech
Phrases
know from
: to have knowledge of
didn't know from sibling rivalry—
Penny Marshall
Penny Marshall
: in possession of exclusive knowledge or information
broadly
: well-informed
Examples of know in a Sentence
Verb
He knows a lot about the history of the town.
Do you know the answer?
I don't know her name.
Do you know what time it is?
I don't know the words to that song.
They knew a good deal about the problem.
She knows the rules of the game.
If you want the answer, ask someone who knows.
I don't know much about art, but I know what I like.
She knows that many people will not believe her.
Recent Examples on the Web
Michelle Marchante, Miami Herald, 12 Oct. 2025
Deborah McGregor, an Anishinaabe scholar from Whitefish River First Nation, defines and discusses the concept of Traditional Ecological Knowledge (TEK), sometimes also known as Indigenous Ecological Knowledge or Indigenous Ecological Wisdom.
—JSTOR Daily, 11 Oct. 2025
Suzanne Wright, USA Today, 13 Oct. 2025
Each week, the mission here is to distill the previous five days’ worth of fantasy football news and notes into a tidy brief, loaded with need-to-know info.
—Andy Behrens, New York Times, 11 Oct. 2025
See All Example Sentences for know
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Verb
Both knew each other from their work for 100 Black Men of America, where Gatlin had been an executive before joining the Foundation.
—Michelle Marchante, Miami Herald, 12 Oct. 2025
Deborah McGregor, an Anishinaabe scholar from Whitefish River First Nation, defines and discusses the concept of Traditional Ecological Knowledge (TEK), sometimes also known as Indigenous Ecological Knowledge or Indigenous Ecological Wisdom.
—JSTOR Daily, 11 Oct. 2025
Noun
Her signature sweet and savory pastries, including the hearty Breakfast Machine with roasted Yukon gold potatoes, sausage, egg, bacon and cheddar; the plump almond croissant and the Tarte au Citron Meringue often sell out, so folks in-the-know preorder online.
—Suzanne Wright, USA Today, 13 Oct. 2025
Each week, the mission here is to distill the previous five days’ worth of fantasy football news and notes into a tidy brief, loaded with need-to-know info.
—Andy Behrens, New York Times, 11 Oct. 2025
See All Example Sentences for know
Cite this Entry
“Know.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/know. Accessed 19 Oct. 2025.
Copy CitationKids Definition
know
1 of 2 verb1
a
: to have understanding of
know yourself
b
: to recognize the nature of
knew them to be honest
2
a
: to recognize the identity of
knew me by my walk
b
: to be acquainted or familiar with
knows the city very well
3
a
: to be aware of the truth of
know that the earth is round
b
: to have a practical understanding of
knows how to write
4
: to have information or knowledge
ask someone who knows
5
: to be or become aware
knew about the problem
know
2 of 2 noun
: the fact of knowing : knowledge
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