# ratio

> English word · Noun · IPA /ˈɹeɪ.ʃi.əʊ/ · frequency rank #3,837

## Definitions
1. A number representing a comparison between two named things.
2. The relative magnitudes of two quantities (usually expressed as a quotient).
3. Ellipsis of ratio decidendi.
4. The number of comments to a post or other expression on social media relative to the number of likes; a high ratio suggests disagreement with the contents of the original post.

## Etymology
Borrowed from Latin ratiō. Doublet of ration and reason.

## Easily confused with
- **Rio** (https://plainspell.com/en/vs/ratio-vs-rio)
- **rats** (https://plainspell.com/en/vs/ratio-vs-rats)
- **Ravi** (https://plainspell.com/en/vs/ratio-vs-ravi)
- **retro** (https://plainspell.com/en/vs/ratio-vs-retro)
- **Rubio** (https://plainspell.com/en/vs/ratio-vs-rubio)
- **ration** (https://plainspell.com/en/vs/ratio-vs-ration)
- **rat** (https://plainspell.com/en/vs/rat-vs-ratio)
- **Rao** (https://plainspell.com/en/vs/rao-vs-ratio)
- **rate** (https://plainspell.com/en/vs/rate-vs-ratio)
- **rain** (https://plainspell.com/en/vs/rain-vs-ratio)
- **rail** (https://plainspell.com/en/vs/rail-vs-ratio)
- **raid** (https://plainspell.com/en/vs/raid-vs-ratio)
- **rani** (https://plainspell.com/en/vs/rani-vs-ratio)
- **Rami** (https://plainspell.com/en/vs/rami-vs-ratio)
- **rath** (https://plainspell.com/en/vs/rath-vs-ratio)
- **rata** (https://plainspell.com/en/vs/rata-vs-ratio)
- **Rafi** (https://plainspell.com/en/vs/rafi-vs-ratio)
- **radio** (https://plainspell.com/en/vs/radio-vs-ratio)
- **rates** (https://plainspell.com/en/vs/rates-vs-ratio)
- **rapid** (https://plainspell.com/en/vs/rapid-vs-ratio)

## Common misspellings (6)
`artio`, `raito`, `ratoi`, `rattio`, `rratio`, `rtaio`

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