# m9 vs MD

> English confusable word pair

## The two words

### m9
*noun · frequency rank #41,746*
Deliberate misspelling of m8.

### MD
*noun · frequency rank #5,143*
Symbol (usually a postnominal) indicating a medical degree; medical physician or medical doctor; doctor(ate) of medicine

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/m9-vs-md