noun
deduction
dih-DUHK-shuhn
noun
1
An amount subtracted from a total, such as from wages or taxable income.
"His payslip listed several deductions, including tax and pension contributions."
2
A conclusion reached through logical reasoning, moving from general principles to a specific result; also the reasoning process itself.
"The detective's deduction proved correct — the butler had done it."
How to Use Deduction
Learner’s notesIn plain EnglishEither an amount taken off a total, or a conclusion reached by logical reasoning.
Common pairings
tax deduction
logical deduction
make a deduction
Word Forms
deductions plural
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His payslip listed several _____, including tax and pension contributions.
Etymology
From Middle French déduction, from Latin deductio, matching either deduct + -ion or deduce + -tion.