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1

clean

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adjective \ˈklēn\

Simple Definition of clean

  • : free from dirt, marks, etc. : not dirty

  • : tending to keep clean

  • : free from pollution or other dangerous substances

Source: Merriam-Webster's Learner's Dictionary

Full Definition of clean

  1. 1 a :  free from dirt or pollution <changed to clean clothes> <clean solar energy> b :  free from contamination or disease <a clean wound> c :  free or relatively free from radioactivity <a clean atomic explosion>

  2. 2 a :  unadulterated, pure <the clean thrill of one's first flight> b of a precious stone :  having no interior flaws visible c :  free from growth that hinders tillage <clean farmland>

  3. 3 a :  free from moral corruption or sinister connections of any kind <a candidate with a clean record>; also :  free from violations <a clean driving record> b :  free from offensive treatment of sexual subjects and from the use of obscenity <a clean joke> c :  observing the rules :  fair <a clean fight>

  4. 4 :  ceremonially or spiritually pure <and all who are clean may eat flesh — Leviticus 7:19(Revised Standard Version)>

  5. 5 a :  thorough, complete <a clean break with the past> b :  deftly executed :  skillful <clean ballet technique> c :  hit beyond the reach of an opponent <a clean single to center>

  6. 6 a :  relatively free from error or blemish :  clear; specifically :  legible <clean copy> b :  unencumbered <clean bill of sale>

  7. 7 a :  characterized by clarity and precision :  trim <a clean prose style> <architecture with clean almost austere lines> b :  even, smooth <a clean edge> <a sharp blow causing a clean break> c :  free from impedances to smooth flow (as of water or air) <a clean airplane> <a ship with a clean bottom>

  8. 8 a :  empty <the ship returned with a clean hold> b :  free from drug addiction <has been clean for six months> c slang :  having no contraband (as weapons or drugs) in one's possession

  9. 9 :  habitually neat

cleanness play \ˈklēn-nəs\ noun

Examples of clean in a sentence

  1. This table isn't clean. There's a sticky spot where something spilled.

  2. He keeps a very clean house.

  3. The janitor does a good job of keeping the office clean.

  4. I wiped the baby's face clean.

  5. He's a clean young man.

  6. Cats are very clean animals.

  7. Solar power provides clean energy.



Origin of clean

Middle English clene, from Old English clǣne; akin to Old High German kleini delicate, dainty


First Known Use: before 12th century


2

clean

adverb

Simple Definition of clean

  • : all the way : completely or entirely

Source: Merriam-Webster's Learner's Dictionary

Full Definition of clean

  1. 1 a :  so as to clean <a new broom sweeps clean> b :  in a clean manner <play the game clean>

  2. 2 :  all the way :  completely <the bullet went clean through his arm>

Examples of clean in a sentence

  1. Somehow, the top of the machine came clean off.

  2. The nail went clean through the wall.

  3. The fish were jumping clean out of the water.



Before 12th Century

First Known Use of clean

before 12th century


3

clean

verb

Simple Definition of clean

  • : to make (something) clean : to remove dirt, marks, etc., from (something)

  • : to become clean

  • : to make (something, such as a room) neat and orderly

Source: Merriam-Webster's Learner's Dictionary

Full Definition of clean

  1. transitive verb
  2. 1 a :  to make clean: as (1) :  to rid of dirt, impurities, or extraneous matter (2) :  to rid of corruption <vowing to clean up city hall> b :  remove, eradicate —usually used with up or off <clean up that mess>

  3. 2 a :  strip, empty <a tree cleaned of fruit> b :  to remove the entrails from <clean fish> c :  to deprive of money or possessions —often used with out <they cleaned him out completely>

  4. intransitive verb
  5. :  to undergo or perform a process of cleaning <clean up before dinner>

cleanability play \ˌklē-nə-ˈbi-lə-tē\ noun
cleanable play \ˈklē-nə-bəl\ adjective
clean house
  1. 1 :  to clean a house and its furniture

  2. 2 :  to make sweeping reforms or changes (as of personnel)

clean one's clock
  1. :  to beat one badly in a fight or competition

clean up one's act
  1. :  to behave in a more acceptable manner

Examples of clean in a sentence

  1. The carpet needs to be cleaned.

  2. They divide household duties so that she cleans and her husband cooks.

  3. They cleaned the fish and cooked them on the campfire.

  4. skin and clean a rabbit



15th Century

First Known Use of clean

15th century


4

clean

noun

Simple Definition of clean

  • : an act of removing dirt from something

Source: Merriam-Webster's Learner's Dictionary

Full Definition of clean

  1. :  an act of cleaning dirt especially from the surface of something

Circa 1889

First Known Use of clean

circa 1889



CLEAN Defined for Kids

1

clean

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adjective \ˈklēn\

Definition of clean for Students

cleanercleanest

  1. 1 :  free of dirt or pollution <clean air> <Put on a clean shirt.>

  2. 2 :  not yet used <Use a clean sheet of paper.>

  3. 3 :  not involving or showing involvement with anything wrong or illegal <good, clean fun> <I've got a clean record.>

  4. 4 :  not offensive <a clean joke>

  5. 5 :  thorough 1 <She made a clean break with the past.>

  6. 6 :  having a simple graceful form :  trim <The ship has clean lines.>

  7. 7 :  1smooth 1 <The knife made a clean cut.>

cleanly \ˈklēn-lē\ adverb



2

clean

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adverb

Definition of clean for Students

  1. :  all the way :  completely <The nail went clean through.> <Birds picked the bones clean.>




3

clean

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verb

Definition of clean for Students

cleanedcleaning

  1. :  to make or become free of dirt or disorder <I cleaned my room.> <Please clean up for supper.>

cleaner noun



Medical Dictionary

1

clean

play
adjective \ˈklēn\

Medical Definition of clean

  1. 1a:  free from dirt or pollutionb:  free from disease or infectious agents <a pullorum-clean flock> <keep installations clean of TB infection>

  2. 2:  free from smudges or anything that tends to obscure <a clean set of fingerprints>

  3. 3of a horse's leg :  free from curbs or bunches below the hock

  4. 4:  free from drug addiction




2

clean

transitive verb

Medical Definition of clean

  1. 1:  to brush (the teeth) with a cleanser (as a dentifrice)

  2. 2:  to perform dental prophylaxis on (the teeth)




Law Dictionary

clean

adjective

Legal Definition of clean

  1. :  free of amendments or annotations





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