# ill vs iso

> French confusable word pair

## The two words

### ill
*adjective · IPA \ˈɪl\ · frequency rank #15,649*
Malade, malsain.

### iso
*noun · IPA \i.zo\ · frequency rank #12,181*
Plan isométrique.

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