GM

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Businesses

General Motors, American automobile manufacturing company, founded September 16, 1908
- Motors Liquidation Company, known as General Motors 1908–1916 and General Motors Corporation 1916–2009
General Mills, American food manufacturing company
Gunn & Moore, British sports equipment company

RGM-79 GM, a mobile suit series in the video game Mobile Suit Gundam
Gamemaster or game master, a person officiating in a multiplayer role-playing game
Grandmaster (chess)
Grandmaster (martial arts)
GM (magazine)

Geiger–Müller tube or G-M tube, a type of radiation detector
Genetic modification or genetically modified, manipulation of an organism's genome
Gigametre or gigameter (Gm), one billion metres
Silty gravel, in the Unified Soil Classification System
Standard gravitational parameter <math>\mu=GM \ </math>
Metacentric height, related to ship stability
Transconductance, an electronic component parameter
GM, unit of cross section named after Maria Goeppert Mayer

Gm (digraph), pair of letters used in English for certain Greek words
GM chassis or Gusenichnaya Machina, a Russian tracked vehicle chassis
G minor, chords and scale
General manager
General MIDI, a standardized specification for music synthesizers
Genital mutilation
George Medal, a UK, primarily civil, decoration for acts of great bravery
Gold master, a version of software to be distributed to customers, i.e. ready for release to manufacturing
Google Maps
Gunner's mate, a US Navy rating