# coi vs Cs

> French confusable word pair

## The two words

### coi
*adjective · IPA \kwa\ · frequency rank #40,676*
Qui est calme, tranquille.

### Cs
*noun · IPA \tseːs\ · frequency rank #10,681*
Pluriel de C.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/fr/vs/coi-vs-cs