Definition of "FM"
FM
noun
countable and uncountable, plural FMs
(uncountable) Initialism of frequency modulation.
(countable, military) Initialism of field marshal.
(countable) Initialism of finance minister.
(countable) Initialism of foreign minister.
(countable) Initialism of first minister.
(countable) Initialism of field manual.
(pathology) Initialism of fibromyalgia.
(countable, aviation) Initialism of fan marker.
(countable, chess) Initialism of FIDE Master.