# mab vs MSM

> English confusable word pair

## The two words

### mab
*noun · frequency rank #47,175*
A slattern.

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-02.
Canonical page: https://plainspell.com/en/vs/mab-vs-msm