adjective, clean·er, clean·est.
- innocent of any crime.
- not having a criminal record.
- carrying or containing no evidence of unlawful activity or intent, as controlled substances, unlicensed weapons, or contraband: The agents searched the car for drugs, but it was clean.
- not using narcotics.
adverb, clean·er, clean·est.
verb (used with object)
verb (used without object)
- to empty in order to straighten or clean.
- to use up; exhaust: He had cleaned out his savings.
- Informal. to drive out by force.
- to empty or rid (a place) of occupants, contents, etc.: Eager customers cleaned out the store on the first day of the sale. The thief cleaned out the safe.
- Slang. to cause to lose all or almost all one's money or possessions.
- to wash or tidy up.
- to rid of undesirable persons or features: They cleaned up the local bars.
- to put an end to; finish: to clean up yesterday's chores.
- Informal. to make a large profit: They cleaned up in the stock market.
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Idioms for clean
- (of a sail or sails) filled with wind; rap full.
- (of a sailing vessel) with all sails full of wind; rap full.
Origin of clean
SYNONYMS FOR clean
synonym study for clean
OTHER WORDS FROM clean
Example sentences from the Web for clean
So we tried to think of the freshest, healthiest, brightest, cleanest restaurant we knew.
The cheapest and cleanest of all energy sources is hydropower.
The cleanest way to stop the carnage is to unify the Eurobond market—make all bonds the liabilities of all the member countries.
Murder was now at a record low and New York was not just the safest, but also the healthiest and cleanest big city in America.
Glass is the cleanest top, painted steel and hard maple coming next in order.Foods and Household Management|Helen Kinne
Men of best knowledge of God's Word and cleanest life were to be nominated annually for election as elders and deacons.The Scottish Reformation|Alexander F. Mitchell
It was one of the cleanest and most simply furnished rooms Parker had ever seen.Sinister Paradise|Robert Moore Williams
Finally, we turned into another place where sugar was being made, and found it the cleanest and neatest of its kind.In Indian Mexico (1908)|Frederick Starr
This was the largest, cleanest, and most level piece of salt meadow that we had observed anywhere.Journal of Jasper Danckaerts, 1679-1680|Jasper Danckaerts
British Dictionary definitions for clean
- (of a nuclear weapon) producing little or no radioactive fallout or contamination
- uncontaminatedCompare dirty (def. 11)
- innocent; not guilty
- not carrying illegal drugs, weapons, etc
- having its bottom clean
- having a satisfactory bill of health
- (of persons) free from ceremonial defilement
- (of animals, birds, and fish) lawful to eat
Derived forms of cleancleanable, adjectivecleanness, noun
Word Origin for clean
Idioms and Phrases with clean
In addition to the idioms beginning with clean
- clean as a whistle
- clean bill of health
- clean breast
- clean hands, have
- clean house
- cleanliness is next to godliness
- clean out
- clean slate
- clean someone's clock
- clean sweep
- clean up
- come clean
- have a clear (clean) conscience
- keep one's nose clean
- make a clean breast of
- make a clean sweep
- new broom sweeps clean
- take to the cleaners
- wipe the slate clean