1. (v.i.)sleep to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; to ceasebeing awake.
2. sleep Bot. to assume, esp. at night, a state similar to the sleep of animals, marked by closing of petals, leaves, etc.
3. sleep to be dormant, quiescent, or inactive, as faculties.
4. sleep to allow one's alertness or attentiveness to lie dormant.
5. sleep to lie in death.
6. (v.t.)sleep to take rest in (a specified kind of sleep): to sleep the sleep of the innocent.
7. sleep to havesleeping accommodations for: This trailer sleeps three people.
8. sleep sleep around, to be sexually promiscuous.
9. sleep to spend or pass (time) in sleep.
10. sleep sleep in,
11. sleep (of domestic help) to sleep where one is employed.
12. sleep to sleep beyond one's usual time of arising.
13. sleep sleep on, to postpone making a decision about for at least a day.
14. sleep sleep out,
15. sleep (of domestic help) to sleep away from one's place of employment.
16. sleep sleep over, to sleep in another person's home.
17. sleep sleep together, to be sexual partners.
18. sleep sleep with, to have sexual relations with.
19. (n.)sleep the state of a person, animal, or plant that sleeps.
Etymology: (bef. 900; (v.) ME slepen, OE slēpan, slæmacr;pan, slāpan, c. OHG
Definition of 'Sleep'
Princeton's WordNet
1. (noun)sleep, slumber a natural and periodic state of rest during which consciousness of the world is suspended "he didn't get enough sleep last night"; "calm as a child in dreamless slumber"
2. (noun)sleep, sopor a torpid state resembling deep sleep
3. (noun)sleep, nap a period of time spent sleeping "he felt better after a little sleep"; "there wasn't time for a nap"
4. (verb)rest, eternal rest, sleep, eternal sleep, quietus euphemisms for death (based on an analogy between lying in a bed and in a tomb) "she was laid to rest beside her husband"; "they had to put their family pet to sleep"
5. (verb)sleep, kip, slumber, log Z's, catch some Z's be asleep
6. (verb)sleep be able to accommodate for sleeping "This tent sleeps six people"
4. (noun)sleep the state of being asleep Try to get some sleep.
5. sleep go to sleep to beginsleeping It took me a long time to go to sleep.
6. sleep put sb to sleep to make sb start sleeping The class was so boring, it put me to sleep.
7. sleep in your sleep while you are sleeping She talks in her sleep.
8. sleep can/could do sth in your sleep indicates sth is very easy for sb I could take the test in my sleep.
9. sleep go to sleep (of part of your body) to become numb because of lack of blood My whole left leg went to sleep.
10. sleep not lose sleep over to not be worried or bothered about We lost one game - I'm not going to lose sleep over it.
11. sleep put sth to sleep to kill an injured or dying animal with an injection of drugs They had to put the dog to sleep.
Definition of 'Sleep'
Webster Dictionary
1. Sleep imp. of Sleep. Slept
2. (verb)Sleep to take rest by a suspension of the voluntary exercise of the powers of the body and mind, and an apathy of the organs of sense; to slumber
3. (verb)Sleep to be careless, inattentive, or uncouncerned; not to be vigilant; to live thoughtlessly
4. (verb)Sleep to be dead; to lie in the grave
5. (verb)Sleep to be, or appear to be, in repose; to be quiet; to be unemployed, unused, or unagitated; to rest; to lie dormant; as, a question sleeps for the present; the law sleeps
6. (verb)Sleep to be slumbering in; -- followed by a cognate object; as, to sleep a dreamless sleep
7. (verb)Sleep to give sleep to; to furnish with accomodations for sleeping; to lodge
8. (verb)Sleep a natural and healthy, but temporary and periodical, suspension of the functions of the organs of sense, as well as of those of the voluntary and rational soul; that state of the animal in which there is a lessened acuteness of sensory perception, a confusion of ideas, and a loss of mental control, followed by a more or less unconscious state
Definitions of 'Sleep'
The New Hacker's Dictionary
1. Sleep 1. [techspeak] To relinquish a claim (of a process on a multitasking
system) for service; to indicate to the scheduler that a process may be
deactivated until some given event occurs or a specified time delay
elapses.
2. In jargon, used very similarly to v.block; also in
sleep on, syn.: with block on. Often used to indicate that the
speaker has relinquished a demand for resources until some (possibly
unspecified) external event: “They can't get the fix I've been asking
for into the next release, so I'm going to sleep on it until the release,
then start hassling them again.”
Definition of 'Sleep'
U.S. National Library of Medicine
1. Sleep A readily reversible suspension of sensorimotor interaction with the environment, usually associated with recumbency and immobility.
Definitions of Sleep 
Afrikaans: slaap
Arabic: يَنام
Bulgarian: спя
Brazilian: dormir
Czech: spát
German: schlafen
Danish: sove
Greek: κοιμάμαι
Spanish: dormir
Estonian: magama
Farsi: خوابيدن
Finnish: nukkua
French: dormir
Hebrew: לִישוֹן
Hindi: सोना
Croatian: spavati
Hungarian: alszik
Indonesian: tidur
Icelandic: sofa
Italian: dormire
Japanese: 眠る
Korean: 잠자다
Lithuanian: miegoti
Latvian: gulēt (miegā)
Malay: tidur
Dutch: slapen
Norwegian: sove
Polish: spać
Persian: خوابيدن
Pashto: ويديدل، خوب وړل
Portuguese: dormir
Romanian: a dormi
Russian: спать
Slovak: spať
Slovenian: spati
Serbian: spavati
Swedish: sova
Thai: หลับ
Turkish: uyumak
Taiwanese: 睡覺
Ukrainian: спати, засинати
Urdu: سونا، نیند لینا
Vietnamese: ngủ
Chinese: 睡眠
