# csi vs CST

> French confusable word pair

## The two words

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

### CST
*noun · IPA \se.ɛs.te\ · frequency rank #34,048*
Cellule souche tumorale.

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