Dutch

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Etymology

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Compound of kolen +‎ gruis.

Pronunciation

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  • IPA(key): /ˈkoː.lə(n)ˌɣrœy̯s/
  • Audio:(file)
  • Hyphenation: ko‧len‧gruis

Noun

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kolengruis n (uncountable)

  1. slack, small coal particles