# MMA vs MO

> English confusable word pair

## The two words

### MMA
*noun · frequency rank #13,197*
Initialism of manual metal arc.

### MO
*noun · frequency rank #3,770*
Initialism of modus operandi.

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