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dust

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noun dust pronunciation in British English /dʌst/
  1. 1
    [uncountable] very small pieces of dirt that cover surfaces inside buildings like a powder

    The dictionaries were covered in dust.

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    1. a.
      very small pieces of dry earth or sand that are like powder

      There were clouds of dust in the distance as the truck approached.

      Synonyms and related words
  2. 2
    [singular] British the action of dusting something

    The sideboard is filthy – can you give it a dust?

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