know Meaning in Cambridge American English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "know" - American English Dictionary

See all translations

knowverb

 us   /noʊ/ (past tense knew  /nu/ , past participle known  /noʊn/ )

know verb (HAVE INFORMATION)

[I/T] to have information in your mind; to be aware of something: [I] “Where did he go?” “I don’t know.” [T] Do you know the answer? [T] She knows the name of every kid in school. [+ question word] Do you know how to tap dance? [+ question word] We don’t know when he’s arriving. [+ (that) clause] I knew (that) something was wrong from the start. [+ question word] I want to know how much this will cost.know of If you know of someone or something, you have experience of or information about the person or thing: Do you know of a good doctor?

know verb (HAVE UNDERSTANDING)

[I/T] to agree with or understand the reasons for an action or opinion: [+ question word] I don’t know what all the fuss is about. [+ question word] “What a stupid movie!” “I know what you mean.”know what it is (like) to To know what it is (like) to be or do something is to understand because you have personally experienced it: She knows what it’s like to go bankrupt – it happened to her 20 years ago.

know verb (BE FAMILIAR WITH)

[I/T] to be familiar with a person or place: [T] I’ve known Vince since we were in elementary school. [T] She grew up in Hawaii so she knows it well. [T] Knowing Debbie (= from my experience of her in the past), she’ll do a good job.

know verb (FEEL CERTAIN)

[T] to feel certain about something: I know I’d enjoy myself if I went. [+ (that) clause] I know (that) I took those library books back. [+ wh- word] I don’t know whether or not I should go to college. [T] to feel certain about something: I know I’d enjoy myself if I went. [+ (that) clause] I know (that) I took those library books back. [+ question word] I don’t know whether or not I should go to college.

know verb (RECOGNIZE)

[T] to recognize someone or something, or to recognize the difference between two people or things: That’s Pete – I’d know him anywhere. I know a bargain when I see one!

knownoun

 us   /noʊ/

know noun (HAVE INFORMATION)

in the know Someone who is in the know has information about something: Ask Keith – he’s always in the know about upcoming projects.
(Definition of know from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of know?
Add Cambridge dictionaries to your browser to your website

Definitions of “know” in other dictionaries

Word of the Day
stretch the truth

to say something that is not completely honest in order to make someone or something seem better than it really is

Word of the Day

July 4th, Bastille Day, and the language of revolution.
July 4th, Bastille Day, and the language of revolution.
by Liz Walter,
July 01, 2015
With the USA’s Independence Day on the 4th and France’s Bastille Day on the 14th, July certainly has a revolutionary theme, so this blog looks at words and phrases we use to talk about the dramatic and nation-changing events that these days celebrate. In particular, it focuses on one of the most

Read More 

generation pause noun
generation pause noun
July 06, 2015
informal young adults who are not able to do things previously typical for their age group such as buy a home or start a family because of lack of money Meanwhile, a new study released last week revealed a quarter of Brits believe they’ll never own a property, leading them to be

Read More