Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “deduction”

See all translations

deduction

noun uk   /dɪˈdʌk.ʃən/ us  

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)
What is the pronunciation of deduction?
Add Cambridge dictionaries to your browser to your website

Definitions of “deduction” in other dictionaries

Word of the Day

pot luck

anything that is available or is found by chance, rather than something chosen, planned, or prepared

Word of the Day

Think long and hard; the language of decisions

by Liz Walter,
January 28, 2015
One of the best ways (perhaps the best way) to improve your English is to learn how words go together in phrases, idioms, or other patterns such as verb/noun or adjective/noun pairs (often called ‘collocations’). This blog looks at some useful phrases and collocations connected with the subject of decisions, something we

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More