# ser vs sérum

> French confusable word pair

## The two words

### ser
*pronoun · frequency rank #15,252*
Que.

### sérum
*noun · IPA \se.ʁɔm\ · frequency rank #15,264*
Liquide qui surnage lorsque le sang se coagule.

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