# firm vs FM

> English confusable word pair

## The two words

### firm
*noun · IPA /fɜɹm/ · frequency rank #1,693*
A business partnership; the name under which it trades.

### FM
*noun · frequency rank #6,908*
Initialism of frequency modulation; radio programming that is broadcast in this form.

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