fm

1 of 4

abbreviation (1)

fathom

Fm

2 of 4

symbol

fermium

FM

3 of 4

noun

ˈef-ˌem 

often attributive

: a broadcasting system using frequency modulation

also : a radio receiver of such a system

FM

4 of 4

abbreviation (2)

field manual

Examples of fm in a Sentence

Recent Examples on the Web

Noun

The neighbor, who has lived in Aero Plantation for decades and asked not to be named, said Heuer addressed his noise complaint a couple of years ago by moving the show’s soundtrack from outdoor speakers to a low-power FM frequency. — Théoden Janes, Charlotte Observer, 17 Sep. 2026

It can be seen on NPR Music’s YouTube channel and the Americana Music Association‘s Facebook page; the audio feed can be found on SiriusXM’s Outlaw Country channel and clear-channel WSM-AM as well as Nashville’s FM stations WRLT and WMOT. — Chris Willman, Variety, 16 Sep. 2026

Plans were also revealed for a new H-E-B to anchor the Flower Mound Center at the southwest corner of FM 2499 and Waketon Road. — Ella Gonzales, Fort Worth Star-Telegram, 14 Sep. 2026

QuoTrek streamed data over FM radio frequencies via satellite. — Brian Lund, Encyclopedia Britannica, 4 Sep. 2026

Word History

Etymology

Noun

frequency modulation

First Known Use

Noun

1940, in the meaning defined above

Kids Definition

FM

noun

ˈef-ˌem

: a system of broadcasting using frequency modulation

also : a receiver of radio waves broadcast by such a system

FM adjective

Medical Definition

Fm

symbol

fermium