SL explained

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

Serbian Left (Srpska levica), a political party in Serbia
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
Sri Lanka, an island country in South Asia

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
Standard length, a common measurement for fish
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 or SL(n)
Special linear Lie algebra, denoted

ak{sl}_n(F)

or

ak{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
Sublingual administration of medicine
Surround Left (SL) speaker on a 5.1 surround sound setup

See also