# OSEF vs osm

> French confusable word pair

## The two words

### OSEF
*intj · IPA \o.zɛf\ · frequency rank #20,221*
Variante en majuscules de osef (« on s’en fout »).

### osm
*noun · IPA \ɔsm̥\ · frequency rank #41,435*
Osmium.

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