SM

n. combination of sadism and masochism, use of violence and the giving or receiving of pain to realize sexual fantasies

SM may refer to:The model SM of the French automobile manufacturer Citroën.Sm is an abbreviation for an irregular galaxy with some structure.A USCS symbol for silty sandS&M is a British comedy show starring Tony Slattery and Mike McShane.SM postal areaSM EntertainmentSM Prime Holdingssm also refers to Sudu Malli (little fair younger brother)2SM, Australian radio stationSadism and masochism, sometimes also written as S&M.Sailor Moon, a popular Japanese anime and manga series.Sales and MarketingSam & Max, cartoon characters that have appeared in various mediaSamarium, chemical element 62, written Sm.Samoan language (ISO 639 alpha-2, sm)San Marino (ISO 3166-1 alpha-2 country code, SM)The Scarlet Monastery, an instance dungeon in the MMORPG World of WarcraftScientiæ Magister, a degree of Master of Science in some universitiesScoutmasterSelective mutismSelf-mutilationSenior Minister, a cabinet position in the Singapore government.Sepia MutinySerbia and MontenegroSergey Medjitov Russian mathematician and computer scientistServer MatrixService mark, a trademark-related term often written in elevated smallcaps: ExampleSMService MerchandiseService Module, part of a spacecraftShader Model, Usually placed next to the Shader version (SM1.1, SM2.0, SM3.0, SM4.0)Sign & Magnitude, a means to encode signed integers in binary.SmartMedia (also known as SMC or SmartMedia Card)Sony MusicSpace Marines from the Warhammer 40,000 universe.Space Metres, a fictional unit of measurement used in the Star Fox series of videogames.Spesmilo, an obsolete unit of currency adopted by some banks in the UK and Switzerland, equal to .733 g of gold.Spider-ManSt. Mary's Railroad Stage Manager, a sub-discipline of stagecraft.Standard modelStephen Malkmus, member of indie-rock band PavementStepmania, a game much like DDRStatute mileSupplementary Member voting system.Super MetroidSvenska Mästerskap, which means Swedish Championships.Swedline Express, IATA airline designatorSymphony & Metallica, a recorded album of a concert done by the San Francisco Symphony and Metallica together.Suomen mestari / "Suomen mestaruus" -kisat(=SM-kisat), which means Finnish Champion or Finnish Championships
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.sm is the Internet country code top-level domain (ccTLD) for San Marino.
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Sir James Edward Smith (December 2, 1759 –  March 17, 1828) was an English botanist and founder of the Linnean Society.Smith was born in Norwich in 1759, the son of a wealthy wool merchant. He displayed a precocious interest in the natural world. During the early 1780s he enrolled in the medical course at the University of Edinburgh where he studied chemistry under Prof Joseph Black and natural history under Prof John Walker. He then moved to London in 1783 to continue his studies. Smith was a friend of Sir Joseph Banks who was offered the entire collection of books, manuscripts and specimens of the Swedish natural historian and botanist Carolus Linnaeus, following the death of his son Carolus Linnaeus the Younger. Banks declined the purchase but Smith bought the collection for the bargain price of £1,000. The collection arrived in London in 1784 and in 1786 Smith was elected Fellow of the Royal Society.
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Noun
1. a master's degree in science
(synonym) Master of Science, MS, MSc
(hypernym) master's degree

Noun
1. a gray lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
(synonym) samarium, atomic number 62
(hypernym) metallic element, metal
(substance-holonym) bastnasite, bastnaesite

SM, samarium, rare metallic chemical element (Chemistry)

HM, His Magesty