The meaning of CLEAN is free from dirt or pollution. How to use clean in a sentence.

Make sure your hands are clean before you have your dinner. Hospitals need to be kept spotlessly (= extremely) clean.

If you clean something or clean dirt off it, you make it free from dirt and unwanted marks, for example by washing or wiping it. If something cleans easily, it is easy to clean.

Dec 29, 2025 · clean (comparative cleaner, superlative cleanest) Free of dirt, filth, or impurities (extraneous matter); not dirty, filthy, or soiled. quotations

Define clean. clean synonyms, clean pronunciation, clean translation, English dictionary definition of clean. adj. clean·er , clean·est 1. Free from dirt, stain, or impurities; unsoiled: a clean kitchen floor; …

CLEAN meaning: 1 : free from dirt, marks, etc. not dirty; 2 : tending to keep clean

Definition of clean adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

clean adjective (NO CRIME) showing that you have not done anything illegal: a clean driving licence

Synonyms for CLEAN: spotless, immaculate, pristine, stainless, spick-and-span, squeaky-clean, shiny, unsullied; Antonyms of CLEAN: dirty, unclean, filthy, stained, soiled, foul, uncleaned, grubby

Make sure your hands are clean before you have your dinner. Hospitals need to be kept spotlessly (= extremely) clean.