# Proteus

> English word · Proper noun · IPA /ˈpɹəʊtjuːs/ · frequency rank #39,973

## Definitions
1. A sea god who could change his shape at will.
2. The sixth satellite of the planet Neptune.

## Etymology
Derived from Ancient Greek Πρωτεύς (Prōteús).

## Easily confused with
- **proves** (https://plainspell.com/en/vs/proteus-vs-proves)
- **prowess** (https://plainspell.com/en/vs/proteus-vs-prowess)
- **POTUS** (https://plainspell.com/en/vs/potus-vs-proteus)
- **process** (https://plainspell.com/en/vs/process-vs-proteus)
- **protect** (https://plainspell.com/en/vs/protect-vs-proteus)
- **protein** (https://plainspell.com/en/vs/protein-vs-proteus)
- **protest** (https://plainspell.com/en/vs/protest-vs-proteus)
- **profess** (https://plainspell.com/en/vs/profess-vs-proteus)
- **protégé** (https://plainspell.com/en/vs/protege-vs-proteus)
- **protease** (https://plainspell.com/en/vs/protease-vs-proteus)

## Common misspellings (10)
`porteus`, `pproteus`, `proetus`, `protesu`, `proteuss`, `protteus`, `protues`, `prroteus`, `prtoeus`, `rpoteus`

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