# moc vs MP4

> English confusable word pair

## The two words

### moc
*noun · frequency rank #46,632*
moccasin (type of shoe)

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

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