Cleaning, the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment
Cleanliness, the abstract state of being clean and free from dirt
The Clean, an influential first-wave indie rock band
Clean (Severed Heads album), 1981
Clean (Deitiphobia album), 1994
Clean (Shane & Shane album), 2004
Clean (Cloroform album), 2007
Clean EP, second EP by American rock band Whores
"Clean", a song by Depeche Mode from their 1990 album Violator
Clean, an amplifier sound in guitar terminology
Clean, an Edwin Starr album
Clean vocals, a term used for singing to distinguish it from screaming or growling, which are called unclean vocals
"Clean", a song by Taylor Swift from Swift's album 1989, also covered by Ryan Adams from Adams's album of the same name
Clean climbing, the choice to employ non-destructive hardware and techniques in rock climbing
Clean Language, a questioning technique used in psychotherapy and coaching
Clean (programming language), a purely functional programming language
Clean (film), a 2004 French drama film directed by Olivier Assayas
Clean and jerk, a weightlifting movement
Clean comedy (or any other clean performance), which describes entertainment which avoids the use of profanity and other objectionable material, particularly sexual or other bodily functions; the opposite of blue comedy
Component Validator for Environmentally Friendly Aero Engine
CLEAN (algorithm), a computational algorithm used in astronomy to perform a deconvolution on dirty images
Commonwealth Law Enforcement Assistance Network, a system used by law enforcement and other criminal justice agencies in Pennsylvania which interfaces NCIC, Penndot and other sources beneficial to law enforcement personnel. Operated by the Pennsylvania State Police.
Cryogenic Low-Energy Astrophysics with Noble gases, a liquid argon dark matter detector under construction at SNOLAB.
Mr. Clean was created by Linwood Burton, a marine ship cleaning businessman with accounts throughout the east coast of the United States and his friend, Mathusan Chandramohan, a rich entrepreneur from Sri Lanka. In the past, ships had to be cleaned using abrasives or solvents that were able to cut successfully through embedded grease and grime; however, past solvents were so dangerous to workers that Burton was motivated to finding a solution that was effective and less caustic. Burton, with fundamental knowledge in chemistry, developed Mr. Clean in an effort to clean ships without having to pay significant premiums in disability claims for his workers. He later sold the product to Procter & Gamble in 1958.
Mr. Clean made his television commercial debut in 1958, initially portrayed in the live-action versions by character actor House Peters Jr. Within the first six months of the introduction, Mr. Clean became the best-selling household cleaner on the market.