# deduction

> English word · Noun · IPA /dɪˈdʌkʃən/ · frequency rank #15,795

## Definitions
1. That which is deducted; that which is subtracted or removed.
2. That which is deducted; that which is subtracted or removed.
3. That which is deducted; that which is subtracted or removed.
4. A process of reasoning that moves from the general to the specific, in which a conclusion follows necessarily from the premises presented, so that the conclusion cannot be false if the premises are true.
5. A process of reasoning that moves from the general to the specific, in which a conclusion follows necessarily from the premises presented, so that the conclusion cannot be false if the premises are true.

## Etymology
From Middle French déduction, from Latin deductio.
Equivalent to deduct + -ion or deduce + -tion.

## Easily confused with
- **detection** (https://plainspell.com/en/vs/deduction-vs-detection)
- **depiction** (https://plainspell.com/en/vs/deduction-vs-depiction)
- **defection** (https://plainspell.com/en/vs/deduction-vs-defection)
- **deductive** (https://plainspell.com/en/vs/deduction-vs-deductive)
- **dedication** (https://plainspell.com/en/vs/dedication-vs-deduction)

## Common misspellings (14)
`ddeduction`, `ddeuction`, `dedcution`, `dedduction`, `deducction`, `deduciton`, `deducsion`, `deductino`, `deductionn`, `deductoin`, `deducttion`, `dedutcion`, `deudction`, `edduction`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/deduction