# fatty

> English word · Adjective · IPA /ˈfæt.i/ · frequency rank #9,607

## Definitions
1. Containing, composed of, or consisting of fat.
2. Containing, composed of, or consisting of fat.
3. Like fat; greasy.
4. Of or related to fat.
5. Literally or figuratively large.

## Etymology
From Middle English fatty, equivalent to fat + -y. Cognate with Saterland Frisian fattig (“fatty”), Dutch vettig (“fatty, greasy”), German Low German fettig (“fatty”), German fettig (“fatty”).

## Easily confused with
- **fay** (https://plainspell.com/en/vs/fatty-vs-fay)
- **fifty** (https://plainspell.com/en/vs/fatty-vs-fifty)
- **forty** (https://plainspell.com/en/vs/fatty-vs-forty)
- **footy** (https://plainspell.com/en/vs/fatty-vs-footy)
- **fatwa** (https://plainspell.com/en/vs/fatty-vs-fatwa)
- **faulty** (https://plainspell.com/en/vs/fatty-vs-faulty)
- **flatly** (https://plainspell.com/en/vs/fatty-vs-flatly)
- **fealty** (https://plainspell.com/en/vs/fatty-vs-fealty)
- **fat** (https://plainspell.com/en/vs/fat-vs-fatty)
- **fact** (https://plainspell.com/en/vs/fact-vs-fatty)
- **fast** (https://plainspell.com/en/vs/fast-vs-fatty)
- **fate** (https://plainspell.com/en/vs/fate-vs-fatty)
- **fart** (https://plainspell.com/en/vs/fart-vs-fatty)
- **fats** (https://plainspell.com/en/vs/fats-vs-fatty)
- **Fait** (https://plainspell.com/en/vs/fait-vs-fatty)
- **Fata** (https://plainspell.com/en/vs/fata-vs-fatty)
- **faith** (https://plainspell.com/en/vs/faith-vs-fatty)
- **facts** (https://plainspell.com/en/vs/facts-vs-fatty)
- **fancy** (https://plainspell.com/en/vs/fancy-vs-fatty)
- **fatal** (https://plainspell.com/en/vs/fatal-vs-fatty)

## Common misspellings (6)
`aftty`, `fattyy`, `faty`, `fatyt`, `ffatty`, `ftaty`

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