# cer vs csi

> French confusable word pair

## The two words

### cer
*noun · IPA \ˈʧeɾ\ · frequency rank #46,052*
Ciel.

### csi
*noun · IPA \ˈksi\ · frequency rank #30,552*
Ksi.

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