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coarsen

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verb British English pronunciation: coarsen /ˈkɔː(r)s(ə)n/ 
Word Forms
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present tense
I/you/we/theycoarsen
he/she/itcoarsens
present participlecoarsening
past tensecoarsened
past participlecoarsened
  1. 1
    [intransitive/transitive] to become rough and hard, or to make something become rough and hard

    the coarsened skin on his hands

  2. 3
    [transitive] to make someone or something less polite or less sensitive

    The years spent in the army had coarsened his manners.

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