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deduction

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noun British English pronunciation: deduction /dɪˈdʌkʃ(ə)n/ 
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singulardeduction
pluraldeductions
  1. 1
    [countable] an amount or number taken from a total

    Italian workers pay far more in tax and other deductions.

    1. a.
      [uncountable] the process of taking an amount or number from a total

      Interest will be paid without deduction of tax.

  2. 2
    [countable] something that you know from the information or evidence that you have

    We know he is guilty, but it takes more than deductions to win a court case.

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