CLEAN

I. adjective Etymology: Middle English clene, from Old English clǣne; akin to Old High German kleini delicate, dainty Date: before 12th century 1. free from dirt or pollution , free from contamination or disease , free or relatively free from radioactivity , 2. unadulterated , pure , having no interior flaws visible, free from growth that hinders tillage , 3. free from moral corruption or sinister connections of any kind , free from offensive treatment of sexual subjects and from the use of obscenity , observing the rules ; fair , ceremonially or spiritually pure , 5. thorough , complete , deftly executed ; skillful , hit beyond the reach of an opponent , 6. relatively free from error or blemish ; clear , unencumbered , 7. characterized by clarity and precision ; trim , even , smooth , free from impedances to smooth flow (as of water or air) , 8. empty , free from drug addiction , having no contraband (as weapons or drugs) in one's possession, habitually neat, ~ness noun II. adverb Date: before 12th century 1. so as to ~ , in a ~ manner , all the way ; completely , III. verb Date: 15th century transitive verb 1. to make ~: as, to rid of dirt, impurities, or extraneous matter, to rid of corruption , remove , eradicate , 2. strip , empty , to remove the entrails from , to deprive of money or possessions, intransitive verb to undergo or perform a process of ~ing , ~ability noun ~able adjective IV. noun Date: circa 1889 an act of ~ing dirt especially from the surface of something