# mph vs MSM

> English confusable word pair

## The two words

### mph
*noun · IPA /ˌɛmpiˈeɪt͡ʃ/ · frequency rank #6,813*
Initialism of mile(s) per hour.

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

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