# subunit

> English word · Noun · IPA /sʌbˈjuːnɪt/ · frequency rank #27,300

## Definitions
1. Any subdivision of a larger unit.
2. A protein subunit.

## Etymology
From sub- + unit.

## Easily confused with
- **submit** (https://plainspell.com/en/vs/submit-vs-subunit)

## Common misspellings (10)
`sbuunit`, `ssubunit`, `subbunit`, `subnuit`, `subuint`, `subunitt`, `subunnit`, `subunti`, `suubnit`, `usbunit`

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