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Understanding the Context

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. Define clean.

Key Insights

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 clothes. 2.

Final Thoughts

a. Free from foreign matter or... 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. clean (third-person singular simple present cleans, present participle cleaning, simple past and past participle cleaned) (transitive) To remove dirt from a place or object. to empty in order to straighten or clean: [~ + out + object] I had to clean out my desk to find what I was looking for.

[~ + object + out] I cleaned it out before dinner.