# cath vs CST

> French confusable word pair

## The two words

### cath
*noun · IPA \kaːθ\ · frequency rank #40,167*
Chat (animal).

### 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/cath-vs-cst