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deduction - definition and synonyms


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noun deduction pronunciation in British English /dɪˈdʌkʃ(ə)n/
Word Forms
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  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.
    1. a.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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