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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.

We offer professional cleaning services, carpet and floor care, by trained employees. Our building cleaning services ensure a higher level of cleanliness, safety, and maintenance, ultimately …

Oct 31, 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 …

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.

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

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

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