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 clothes. 2. a. Free from foreign matter or...
Clean may refer to: Cleaning, the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment Cleanliness, the state of being clean and free from dirt