# MP3 vs MSM

> English confusable word pair

## The two words

### MP3
*noun · frequency rank #12,463*
A digital sound recording in MP3 format; a song file.

### MSM
*noun · frequency rank #20,171*
Initialism of methylsulfonylmethane.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/mp3-vs-msm