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1

sleep

play
noun \ˈslēp\

Simple Definition of sleep

  • : the natural state of rest during which your eyes are closed and you become unconscious

  • : a period of sleep especially of a particular kind

  • : the dry substance that sometimes forms in the corners of your eyes while you are sleeping

Source: Merriam-Webster's Learner's Dictionary

Full Definition of sleep

  1. 1 :  the natural periodic suspension of consciousness during which the powers of the body are restored — compare REM sleep, slow-wave sleep

  2. 2 :  a state resembling sleep: asa :  a state of torpid inactivityb :  death <put a pet cat to sleep>; also :  trance, comac :  the closing of leaves or petals especially at nightd :  a state marked by a diminution of feeling followed by tingling <my foot's gone to sleep>e :  the state of an animal during hibernation

  3. 3a :  a period spent sleepingb :  nightc :  a day's journey

  4. 4 :  crusty matter present in the corner of an eye upon awakening

sleeplike play \-ˌlīk\ adjective

Examples of sleep in a sentence

  1. I just need to get some sleep.

  2. How much sleep did you get last night?

  3. Her roommate talks in her sleep.

  4. The noise woke her from a deep sleep.

  5. He woke up and rubbed the sleep out of his eyes.



Origin of sleep

Middle English slepe, from Old English slǣp; akin to Old High German slāf sleep and perhaps to Latin labi to slip, slide


First Known Use: before 12th century

Other Physiology Terms


2

sleep

verb,

Simple Definition of sleep

  • : to rest your mind and body by closing your eyes and becoming unconscious

  • : to have enough space for (a specified number of people) to sleep in it

Source: Merriam-Webster's Learner's Dictionary

Full Definition of sleep

slept play \ˈslept\ sleeping

  1. intransitive verb
  2. 1 :  to rest in a state of sleep

  3. 2 :  to be in a state (as of quiescence or death) resembling sleep

  4. 3 :  to have sexual relations —usually used with with

  5. transitive verb
  6. 1 :  to be slumbering in <slept the sleep of the dead>

  7. 2 :  to get rid of or spend in or by sleep <sleep away the hours> <sleep off a headache>

  8. 3 :  to provide sleeping accommodations for <the boat sleeps six>

Examples of sleep in a sentence

  1. I couldn't sleep last night. I was awake all night long.

  2. I usually try to sleep for at least eight hours every night.

  3. Did you sleep soundly last night?

  4. We were sleeping peacefully when a sudden loud noise woke us up.

  5. I can never sleep on airplanes.

  6. The tent sleeps five adults.



Before 12th Century

First Known Use of sleep

before 12th century



SLEEP Defined for Kids

1

sleep

play
verb \ˈslēp\

Definition of sleep for Students

slept \ˈslept\sleeping

  1. :  to rest with eyes closed in a temporary state of inactivity :  be or lie in a state of sleep <The baby is sleeping.>




2

sleep

play
noun

Definition of sleep for Students

  1. 1 :  a natural temporary state of rest during which an individual becomes physically inactive and unaware of the surrounding environment and many bodily functions (as breathing) slow

  2. 2 :  an inactive state (as hibernation) like true sleep

  3. 3 :  death 3 <The sick pet was put to sleep.>

sleepless \-ləs\ adjective
sleeplessness play noun



Medical Dictionary

1

sleep

play
noun \ˈslēp\

Medical Definition of sleep

  1. 1:  the natural periodic suspension of consciousness during which the powers of the body are restored—compare rem sleep, slow-wave sleep

  2. 2:  a state resembling sleep: asa:  death 1 <put a pet cat to sleep>b:  a state marked by a diminution of feeling followed by tingling <her foot went to sleep>




2

sleep

intransitive verb

Medical Definition of sleep

slept \ˈslept\play ; sleeping

  1. :  to rest in a state of sleep





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