SL

SL may refer to:

Arts and entertainment

• SL (rapper), a rapper from London
• Second Life, a multi-user 3D virtual world
• Sensei's Library, an Internet site dedicated to the game of Go
• Subdominant leittonwechselklänge
• Leica SL, a mirrorless system camera by Leica Camera AG

Business and organizations

• Sociedad Limitada, the Spanish version of a private limited company

Politics

• Stronnictwo Ludowe, a defunct Polish political party
• Soyons Libres, a French political party

Transportation and vehicles

• SL Corporation, a Korean auto parts company
• Rio Sul Serviços Aéreos Regionais (IATA code SL), a Brazilian airline
• Salt Lake City Southern Railroad (reporting mark SL)
• Stor-Oslo Lokaltrafikk, a public transport operator in Akershus, Norway
• Storstockholms Lokaltrafik, the public transport operator in Stockholm, Sweden
• Thai Lion Air (IATA airline code SL)
• Mercedes-Benz SL-Class, an automobile

Trade unions

• Association of Social Educators, a trade union in Denmark

Geography

• Sierra Leone, in West Africa, ISO 3166 code
• Saarland, a state of Germany
• SL postcode area of the United Kingdom
• Sungai Long, in Selangor, Malaysia

Language

• Sl (digraph), a Latin-script digraph
• Sign language, used by deaf persons
• Slovene language (ISO 639-1 code "sl")

Science, technology, and mathematics

Biology

• Sensu lato, a term used in taxonomy to mean "in the wider sense" of a definition
• Abbreviation for Sophrolaelia, an orchid genus

Computing

• sl, a humorous command in some Unix-based systems that draws an animation of a steam locomotive, intended to be invoked as a typo of ls
• .sl, the country code top-level domain for Sierra Leone
• SL (complexity), a class of computational complexity
• Scientific Linux, a Linux distribution
• Service Loading, a variant of WAP push method

Mathematics

• SL (complexity), a class of computational complexity
• sl (elliptic function), sine lemniscate function
• Special linear group in mathematics, denoted SL_n
• Special linear Lie algebra, denoted ${\mathfrak {sl}}_{n}(F)$ or ${\mathfrak {sl}}(n,F)$.

Other uses

• Serjeant-at-law, a former type of barrister in England and Ireland
• Sine loco in bibliographies means that place of publication is unknown
• Standard length, a common measurement for fish

See also

• All pages with titles containing SL
• LS (disambiguation)
• SLS (disambiguation)