Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “sleep”

sleep

verb
 
 
/sliːp/ (past tense and past participle slept)
A1 [I] to be in the state of rest when your eyes are closed, your body is not active, and your mind is unconscious: We had to sleep in the car that night. Did you sleep well?Sleep and sleeping
sleep four/six, etc If a place sleeps four, six, etc, it is big enough for that number of people to sleep in.Accommodating people
→ See also not sleep a wink, sleep on it, sleep in, sleep sth off, sleep over, sleep through sth, sleep with sb
(Definition of sleep verb from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “sleep” in other dictionaries

Word of the Day

mutant

an organism that is different from others of its type because of a permanent change in its genes

Word of the Day

What’s that lovely smell?

by Kate Woodford,
October 29, 2014
As adult humans, we can distinguish about 10,000 different smells. It’s no wonder, then, that we have so many words and expressions to describe them. This week we’re taking a look at those smell words – words that describe good smells and words that describe bad smells. Most smell words are either

Read More 

high-frequency trading noun

October 27, 2014
a type of stock market trading that uses very complex technology to trade extremely quickly, often making tiny profits which nevertheless add up to substantial sums Lewis’s book, Flash Boys, is driving a huge amount of attention toward the topic of high frequency trading, and it has rekindled some of

Read More