# ketone

> English word · Noun · IPA /ˈkiːtəʊn/ · frequency rank #44,884

## Definitions
1. A homologous series of organic molecules whose functional group is an oxygen atom joined to a carbon atom—by a double bond—in a carbon-hydrogen based molecule.

## Etymology
From German Keton, from Aketon (“acetone”), from French acétone (“acetone”). See acetone.

## Easily confused with
- **kettle** (https://plainspell.com/en/vs/ketone-vs-kettle)
- **keystone** (https://plainspell.com/en/vs/ketone-vs-keystone)
- **keto** (https://plainspell.com/en/vs/keto-vs-ketone)
- **Keane** (https://plainspell.com/en/vs/keane-vs-ketone)
- **keene** (https://plainspell.com/en/vs/keene-vs-ketone)
- **Keaton** (https://plainspell.com/en/vs/keaton-vs-ketone)
- **Kenton** (https://plainspell.com/en/vs/kenton-vs-ketone)

## Common misspellings (8)
`ektone`, `keotne`, `ketnoe`, `ketoen`, `ketonne`, `kettone`, `kketone`, `kteone`

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