know - Definition in the Essential American English Dictionary - Cambridge Dictionaries Online

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “know”

See all translations

know

verb
 
/noʊ/ ( past tense knew, past participle known)
A1 to have information about something in your mind: “How old is she?” “I don’t know.” He knew that she was lying.
A1 used to ask someone to tell you a piece of information: Do you know where the post office is?
A2 to be certain: I know she’ll be really pleased to hear the news.
A2 to be able to do something: Do you know how to ski?
B1 to have spent time with someone or in a place so that the person or place is not new to you: I’ve known Al since we were children. I grew up in Boston, so I know it well.
let someone know A2 to tell someone something: Let me know if you’re going to the party.
I know used when you agree with something someone has just said: “It’s a beautiful day, isn’t it?” “I know – let’s hope it lasts.”
you know B1 used to make sure someone understands which person or thing you are talking about: I was talking about Rachel – you know, the tall woman with the blond hair.
B1 ( also know about) If you know a subject, or you know about it, you are familiar with it and understand it: Ask Andy to fix it – he knows about computers.
be known as something B1 to be called: California is also known as the Sunshine State.
get to know someone/something B1 to gradually learn more about someone or something: I got to know Frank at work.
as far as I know used to say that you think something is true, but cannot be sure: As far as I know, he isn’t married.
(Definition of know from the Websters Essential Mini Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

More Essential American English definitions for “know”

Definitions of “know” in other dictionaries

Word of the Day

Morse code

a system used for sending messages, in which letters and numbers are represented by short and long marks, sounds, or flashes of light

Word of the Day

The language of elections

by Liz Walter,
April 22, 2015
On May 7th, citizens of the UK will be going to the polls (having an election) to decide who will form the next government. This kind of election is known as a general election. The country is divided into 650 areas, called constituencies. Each constituency elects a member of parliament (MP) to

Read More 

e-juice noun

April 27, 2015
the liquid content in an e-cigarette, which includes nicotine and may be flavoured in various ways Cannabidiol oil that comes from industrial hemp plants, which is what is infused into our e-juice, is 100 per cent legal.

Read More