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English definition of “sleep”

sleep

noun uk   /sliːp/ us  

sleep noun (NOT AWAKE)

B1 [U] the resting state in which the body is not active and the mind is unconscious: I must get some sleep - I'm exhausted.
See also
get/go to sleep B1 to succeed in sleeping: I couldn't get to sleep at all last night for worrying. You'll find that your baby usually goes to sleep after a feed. B1 [C] a period of sleeping: You must be tired after all that driving - why don't you have a little sleep? He fell into a deep sleep.

sleep noun (SUBSTANCE)

[U] informal a yellowish substance sometimes found in the corners of the eyes after sleeping

sleep

verb uk   /sliːp/ (slept, slept) us  
A1 [I] to be in the state of rest when your eyes are closed, your body is not active, and your mind is unconscious: I couldn't sleep because of all the noise next door. I slept late on Sunday morning. How can Jayne sleep at night with all those worries on her mind! We had dinner with Ann and Charles and slept the night (with them) (= at their home). [T] If a vehicle, tent, etc. sleeps a particular number of people, it provides enough space or beds for that number of people to be able to sleep in it: The caravan sleeps four comfortably. sleep like a log informal to sleep very well: I went to bed early and slept like a log. sleep on sth C2 to delay making a decision about something important until the next day so that you have time to consider it carefully: Can I sleep on it, and tell you my decision tomorrow? sleep rough UK to sleep outside because you have no home and no money: Hundreds of kids are sleeping rough on the streets of London.
sleeping
adjective uk   /ˈsliː.pɪŋ/ us  
She looked lovingly at the sleeping child.
See also
(Definition of sleep from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of sleep?
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