Editing SEM

{{wiktionarypar|Sem|sem}}
'''SEM''' or '''Sem''' can refer to:
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== Computing ==

* [[Search engine marketing]], promoting websites by increasing their visibility in search engine results
* [[Security event manager]], a security log tool used on data networks

== Economics and management ==
* [[Stock Exchange of Mauritius]], the principal stock exchange of the island country of Mauritius
* [[Strategic enrollment management]], an element of planning for new growth at a university or college
* [[Samsung Electro-Mechanics]], a South Korean company

== Energy==
* [[Single Electricity Market]], the integration of the electricity sectors of the  Republic of Ireland and Northern Ireland in a single market
* [[Strategic energy management]], continuous improvement process for energy efficiency based on behavioral change

== Mathematics and statistics ==
* [[Structural equation modeling]], in data analysis
* [[Simultaneous equations model]], in econometrics
* [[Standard error#Standard error of the mean|Standard error of the mean]] in statistics

== Places ==
* [[Craig Field (Alabama)]] (IATA code: SEM), a public airport four miles southeast of Selma, in Dallas County, Alabama 
* [[Sem, Ariège]], a former commune in the Ariège department in southwestern France
* [[Sem, Norway]], a village in Tønsberg Municipality in Vestfold county, Norway
* [[Sem Municipality]], a former municipality in Vestfold county, Norway

== Science and technology ==
* [[Scanning electron microscope]]
* Space Experiment Module, of the [[Freestar experiment#Space Experiment Module (SEM)|Freestar experiment]] on space shuttle Columbia
* [[Sistema Eléctrico de Magallanes]], an electrical power grid of Chile
* SEM, instrument ([[seismometer]]) of the Surface Science Platform ([[Kazachok]]) mission [[ExoMars]] 2022
* A protecting group in organic chemistry, see [[2-(Trimethylsilyl)ethoxymethyl chloride|2-(trimethylsilyl)ethoxymethyl chloride]] (SEM-Cl)

== Schools, organisations, societies ==

* [[Society for Experimental Mechanics]], an engineering professional organization.
* [[The School of Ecclesiastic Music]] the school of Byzantine Music in Mount Lebanon
* [[Swedish Evangelical Mission]]
* [[Society for Ethnomusicology]], an ethnomusicology in Indiana, US
* [[School of Science and Engineering|Science and Engineering Magnet]], a school in Dallas, Texas, US
* [[S.E.M. Group]] civil engineering company based in South Australia
* [[Steam Engine Makers' Society]], early British trade union
* Shandong Engineering Machinery, owned by [[Caterpillar Inc.]]
* [[State Secretariat for Migration (Switzerland)]]

==People==
* [[Shem]] or Sem, one of the sons of Noah, as depicted in the Bible
* [[Sem (given name)]], a usually masculine given name
* [[Sem (artist)]] (1863–1934), French caricaturist
* [[Elise Sem]] (1870–1950), Norwegian barrister, women's activist, and sports official
* [[Ingebjørg Dahl Sem]] (born 1938), Norwegian Christian writer
* [[Ingebjørg Sem]] (1931–2009), Norwegian actress
* [[John Sem]] (born 1973), Papua New Guinean Olympic boxer
* [[Niels Arntzen Sem]] (1782–1859), Norwegian politician
* [[Suy Sem]] (born 1947), Cambodian politician

== Other ==
* [[Dassault-Breguet Super Étendard|Super Étendard Modernisé]], a French fighter aircraft
* [[Self-evaluation maintenance theory]], a psychological theory of self
* [[Oberheim SEM|Synthesizer Expansion Module]], an Oberheim synthesizer
* [[New Austrian tunnelling method]] or Sequential Excavation Method
* [[Sports medicine|Sports and exercise medicine]]

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