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  1. Download CCleaner | Clean, optimize & tune up your PC, free!

    Download CCleaner for FREE. Clean your PC of temporary files, tracking cookies, browser junk and more! Get the latest version today.

  2. CLEAN Definition & Meaning - Merriam-Webster

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

  3. CLEAN | English meaning - Cambridge Dictionary

    CLEAN definition: 1. free from any dirty marks, pollution, bacteria, etc.: 2. honest or fair, or showing that you…. Learn more.

  4. Clean - definition of clean by The Free Dictionary

    1. Free from dirt, stain, or impurities; unsoiled: a clean kitchen floor; clean clothes. 2. a. Free from foreign matter or pollution; unadulterated: clean air; clean drinking water. b. Not infected: a …

  5. CLEAN definition and meaning | Collins English Dictionary

    Something that is clean is free from dirt or unwanted marks. He wore his cleanest slacks, a clean shirt and a navy blazer. Disease has not been a problem because clean water is available. …

  6. clean - WordReference.com Dictionary of English

    to get rid of undesirable persons, features, mistakes, etc., in: [~ + up + object] to clean up the errors in an essay. [~ + object + up] Can you clean them up now?

  7. What does clean mean? - Definitions.net

    Clean typically refers to something that is free from dirt, stains, impurities, or any form of contamination. It suggests a state of hygiene, orderliness, and neatness.

  8. clean, adj. meanings, etymology and more | Oxford English …

    Free from any defiling or deteriorating ingredient; unmixed with foreign matter, pure, unadulterated. Now commonly expressed by pure, except when the contaminating ingredient …

  9. clean, cleaning, cleaned, cleanest, cleaner, cleans- WordWeb …

    Free from dirt or impurities; or having clean habits "clean dishes "; "a spotlessly clean house "; " cats are clean animals "; " children with clean shining faces "; "clean white shirts "

  10. clean - Wiktionary, the free dictionary

    Jun 22, 2025 · Free of contamination, (unwanted) germs, infection, or disease. Insert a clean swab into your nose.

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