# MP3 vs mu

> English confusable word pair

## The two words

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

### mu
*noun · IPA /mjuː/ · frequency rank #11,427*
The 12th letter of the Modern Greek alphabet.

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