# MP4 vs MPAA

> English confusable word pair

## The two words

### MP4
*noun · frequency rank #26,176*
Abbreviation of MPEG-4 Part 14, a file format for playing music and videos.

### MPAA
*name · frequency rank #49,512*
Initialism of Motion Picture Association of America (Motion Picture Association since September 2019).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/mp4-vs-mpaa