deduction definition, meaning - what is deduction in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “deduction”

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deduction

noun uk   us   /dɪˈdʌk.ʃən/

deduction noun (THINKING)

C2 [C or U] the process of reaching a decision or answer by thinking about the known facts, or the decision that is reached: Through a process of deduction, the detectives discovered the identity of the killer. All we can do is make deductions from the available facts.

deduction noun (TAKING AWAY)

C1 [C or U] the calculation of taking an amount or a part of something away from a total or the amount that is taken away: The interest I receive on my savings account is paid after the deduction of tax. [C] US and Australian English (UK stoppage) an amount that is taken away from the money you are paid before you officially receive it: After deductions, his taxable income is $30,000.
(Definition of deduction from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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