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clean - definition and synonyms


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adjective clean pronunciation in American English /klin/
Word Forms
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  1. 1
    not dirty
    Go and put on a clean shirt.
    nice clean towels
    spotlessly clean: Everything in the house was spotlessly clean (=extremely clean).
    neat and clean: I like to keep the place neat and clean.
    brush/scrub/sweep/wash/wipe etc. something clean: Tom had scrubbed the floor clean.
    Synonyms and related words
    1. b.
      clean air or water has no dirty or dangerous substances in it
      Many refugees are living in appalling conditions, without clean water and proper sanitation.
      the clean country air
      Synonyms and related words
    2. c.
      clean machines and processes do not create much pollution
      clean technologies
      We already have the cleanest diesel fuel in the world.
  2. 2
    not guilty of anything illegal or wrong
    an attempt by the government to project a clean image
    Why couldn’t the president send somebody with a totally clean record?
    1. a.
      clean language or humor does not offend people, especially because it does not involve sex
      It was all good clean fun.
      keep it clean (=not say anything offensive): Keep it clean – there are children listening.
    2. b.
      fair and done according to the rules
      It was a good clean fight.
    3. c.
      informal not carrying anything illegal
      The police stopped him, but he was clean.
    4. d.
      informal no longer using illegal drugs
      Carter’s been clean for six months.
  3. 4
    clean smells, tastes, and colors are light and fresh
    The wine is clean and fresh, though with a robust flavor.


a meal served in the evening which consists of foods traditionally eaten at breakfast

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a company that pays its employees to write online comments in favour or against somebody or something posing as ordinary Internet users

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