GM

GM is most commonly seen as an abbreviation for:

*General Motors Corporation, A multinational automobile manufacturing company
*Greater Manchester a county in the United Kingdom.
*Genetically modified, (a living thing) having its DNA intentionally changed for a particular outcome
*Metacentric height, characteristic of a ship primarily determining its stability in the water.
*Geiger-Müller counter / Geiger-Müller tube, the most common instrument for measuring ionizing radiationIn astronomy,
*the product "GM" is the standard gravitational parameter.
*Gunn & Moore, a sports equipment and apparel company.

GM is also an abbreviation for:

*George Michael, British singer
*Gary Moore, an Irish guitarist
*Gabriella Montez, second main character in High School Musical, High School Musical 2, and High School Musical 3, played by Vanessa Hudgens
*The Republic of The Gambia, a country in Africa (ISO 3166 diagram)
*Grandmaster (chess) or International Grandmaster, a chess ranking
*Grand Marquis, a Ford Mercury automobile marque
*General Mills, a food manufacturing company
*General manager of an organisation, including sporting teams
*Game Maker, a computer game developing program
*Gamemaster or Game Master, in play-by-mail games and role-playing games
*Gamemaster (board game series), a series of board games created by Milton Bradley
*GamesMaster (magazine), a video game publication in the UK
*Garry's Mod, a modification for the computer game Half Life 2
*The General MIDI standard specification
*"Göttinger Miszellen", a German scientific journal on Egyptology
*Gold medal. In the UK rifle shooting community, a person who has won Her Majesty the Queen's Prize at Bisley, Surrey may subsequently put the letters GM ('gold medal') after his/her name
*Golden Master, a reference model in hardware/software development.
*Grammatical modality, the mode in which the grammar of a sentence is constructed
*Gross margin, profit as a percentage of sales price
*The RGM-79 GM mobile suit and its successors in the anime series Mobile Suit Gundam
*GM1, a Ganglioside important in brain biochemistry
*A Unified Soil Classification System symbol for silty gravel
*GM chassis
*Game ManagerA job, maintenanceGm may mean:
*gigametre, an SI unit of length equal to 10⁹ (1,000,000,000) metres.

gm may mean:
*A historical (now erroneous) abbreviation for gram (the correct symbol is g).