# rho vs Ruhr

> English confusable word pair

## The two words

### rho
*noun · IPA /ɹəʊ/ · frequency rank #36,739*
The seventeenth letter of the Modern Greek and Classical alphabets and the nineteenth letter of Old and Ancient.

### Ruhr
*name · IPA /ɹʊɚ/ · frequency rank #47,879*
A river in North Rhine-Westphalia, a branch of the river Rhine and its basin.

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