# fluo vs fo

> French confusable word pair

## The two words

### fluo
*adjective · IPA \fly.o\ · frequency rank #22,270*
Fluorescent.

### fo
*noun · IPA \fɔ.ljo\ · frequency rank #9,484*
Folio.

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