Breadcrumb Home > Thesaurus > F Synonyms of fm Find synonyms for: Noun 1. frequency modulation, FM, modulation usage: modulation of the frequency of the (radio) carrier wave 2. fermium, Fm, atomic number 100, metallic element, metal usage: a radioactive transuranic metallic element produced by bombarding plutonium with neutrons WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of fm (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: insuperable Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language