Isl (or isl) is a common abbreviation for "

island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...

" or "islands". ISL may also refer to:

Education and research

* Illinois Security Lab, a research laboratory at the University of Illinois at Urbana-Champaign * Independent School League (disambiguation), independent high school athletic conferences in the United States *

Institute of State and Law The Institute of State and Law (ISL) of the Russian Academy of Sciences (RAS) (''Russian'': Институт государства и права Российской академии наук (ИГП РАН)) is the largest scientific legal ce ...

, a Russian legal think tank affiliated with the Russian Academy of Sciences * International School of Louisiana, a charter school system in the United States *

International School of Lusaka International School of Lusaka (ISL) is an international school in Ridgeway, Lusaka, Zambia. It is equivalent to an American PK-12 school, and it serves levels preschool through IGCSE/IB Diploma The International Baccalaureate Diploma Programm ...

, an international school in Zambia *

International School of Luxembourg The International School of Luxembourg (ISL) is a privately owned non-profit international school located in Hollerich, Luxembourg City, in southern Luxembourg. History The school was founded in 1963 under the name DuPont de Nemours Private Sc ...

, a privately owned non-profit school in Luxembourg * International School of Lyon, an international school in France

Languages

Icelandic language Icelandic (; is, íslenska, link=no ) is a North Germanic language The North Germanic languages make up one of the three branches of the Germanic languages—a sub-family of the Indo-European languages—along with the West Germanic lan ...

(

ISO 639-2 ISO 639- 2:1998, ''Codes for the representation of names of languages — Part 2: Alpha-3 code'', is the second part of the ISO 639 standard, which lists codes for the representation of the names of languages. The three-letter codes given for ea ...

tag: ISL), a language spoken in Iceland *

Indian Sign Language Indo-Pakistani Sign Language (IPSL) is the predominant sign language in the subcontinent of South Asia, used by at least 15 million deaf signers. As with many sign languages, it is difficult to estimate numbers with any certainty, as the C ...

also known as sign language of the deaf community in India * International Sign Language, any of several international auxiliary languages *

Irish Sign Language Irish Sign Language (ISL, ga, Teanga Chomharthaíochta na hÉireann) is the sign language of Ireland, used primarily in the Republic of Ireland. It is also used in Northern Ireland, alongside British Sign Language (BSL). Irish Sign Language is ...

, the sign language of Ireland *

Israeli Sign Language Israeli Sign Language, also known as Shassi or ISL, is the most commonly used sign language by the Deaf community of Israel. Some other sign languages are also used in Israel, among them Al-Sayyid Bedouin Sign Language. History The history of ...

, the most commonly used sign language within Israel's deaf community *

Italian Sign Language Italian Sign Language or LIS (''Lingua dei Segni Italiana'') is the visual language used by deaf people in Italy. Deep analysis of it began in the 1980s, along the lines of William Stokoe's research on American Sign Language in the 1960s. Until ...

, sign language used for Italian deaf people

Sports

* Independent School League (Illinois), a group of nine Chicago-area preparatory schools *

Independent School League (New England) The Independent School League (ISL) is composed of sixteen New England preparatory schools that compete athletically and academically. Founded in 1948, the ISL's sixteen members compete in eighteen sports in the New England Prep School Athletic ...

, a group of 16 New England preparatory schools *

Independent School League (Washington, D.C. area) The Independent School League or ISL is a group of seventeen University-preparatory school, preparatory schools located in the Washington metropolitan area of the United States that compete with each other athletically. All competitors in the ISL ...

, a group of 17 Washington, D.C. preparatory schools *

Interscholastic League of Honolulu The Interscholastic League of Honolulu (ILH) is an athletic activity league whose membership is primarily private secondary schools in Honolulu, Hawai'i. The ILH has 24 member schools with over 13,000 student athletes participating in 37 differ ...

, a group of Hawaiian private schools *

Indian Super League The Indian Super League (ISL) is an Indian professional league for men's association football clubs. At the top of the Indian football league system, it is the country's primary football competition. Organised by the All India Football Federat ...

, a professional football-club league based in India *

Ice Hockey Superleague The British Ice Hockey Superleague (BISL, also known as the Sekonda Ice Hockey Superleague from 1998 to 1999 for sponsorship reasons) was a professional ice hockey league in the United Kingdom between 1996 and 2003. Devised in 1995, it replaced ...

, a British-based ice hockey league that existed between 1996 and 2003 * Indonesia Super League, the top-tier competition for football clubs in Indonesia *

International Soccer League The International Soccer League was a U.S.-based soccer league which was formed in 1960 and collapsed in 1965. The League, affiliated with the American Soccer League, featured guest teams primarily from Europe and some from Asia, South America, C ...

, a U.S. based soccer league which was formed in 1960 and collapsed in 1965 * International Sport and Leisure, a bankrupt Swiss sports marketing company that was closely affiliated with FIFA and the IOC * Iranian Super League (disambiguation), the Iranian professional basketball, futsal or volleyball leagues * Island Soccer League, a professional six-a-side association football league based in Bermuda *

International Swimming League The International Swimming League (ISL) is an annual professional Swimming (sport), swimming league, established in 2019. It features a team-based competition format with fast-paced race sessions. In 2019, the regular season started in October an ...

, a professional swimming league with ten teams and nine rounds in different cities all over the world

Transport

Island line (MTR) The Island line is one of eleven lines of the MTR, the mass transit system in Hong Kong. It runs from Kennedy Town in the Western district to Chai Wan in the Eastern District on Hong Kong Island, passing through the territory's major busi ...

, one of the rapid transit railway lines in Hong Kong *

Isleworth railway station Isleworth railway station is in the London Borough of Hounslow, in west London, and is in Travelcard Zone 4. It is 19 km (12 mi) west-southwest of London Waterloo. The unmanned station and all trains serving it are operated by South We ...

, London, England (National Rail station code) *

Istanbul Atatürk Airport ) , postal_code_type = Postal code , postal_code = 34000 to 34990 , area_code = +90 212 (European side) +90 216 (Asian side) , registration_plate = 34 , blank_name_sec2 = GeoTLD , blank_i ...

, a former major international airport serving Istanbul, Turkey now serves cargo flights

Other uses

Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its s ...

, a Nordic European island country *

In situ leach In-situ leaching (ISL), also called in-situ recovery (ISR) or solution mining, is a mining process used to recover minerals such as copper and uranium through boreholes drilled into a deposit, ''in situ''. In situ leach works by artificially disso ...

, a mining technique *

Independent Socialist League The Workers Party (WP) was a Third Camp Trotskyist group in the United States. It was founded in April 1940 by members of the Socialist Workers Party who opposed the Soviet invasion of Finland and Leon Trotsky's belief that the USSR under Jos ...

, a defunct Trotskyist group in the United States (originally called the "Workers Party") * Independent State Legislature Doctrine, U.S. Constitution reading * Integer set library (isl), a programming library for manipulating integer sets * Inter-Switch Link (disambiguation), a specially configured connection between network equipment **

Cisco Inter-Switch Link Cisco Inter-Switch Link (ISL) is a Cisco Systems proprietary protocol that maintains VLAN information in Ethernet frames as traffic flows between switches and routers, or switches and switches. ISL is Cisco's VLAN encapsulation protocol and is su ...

, a proprietary Cisco VLAN trunking protocol * Intercon Security, a security firm *

International Socialist Left (Germany) The International Socialist Left (german: internationale sozialistische linke, ''isl'') was a Trotskyist group in Germany. The ''isl'' was an organizational descendant of the International Marxist Group (GIM). It was one of two factions that form ...

(German: ), a Trotskyist group in Germany * Irish Shipping Limited, an Irish state-owned deepsea shipping company formed during World War II * i. s. L., "in the sense of Lyapunov" (in mathematical contexts), a reference to

Lyapunov stability Various types of stability may be discussed for the solutions of differential equations or difference equations describing dynamical systems. The most important type is that concerning the stability of solutions near to a point of equilibrium. ...

International Service Learning International Service Learning, founded in 1996, is a non-governmental organization that offers medical volunteers two to three week placements in twelve countries: Belize, Colombia, Costa Rica, Cuba, Dominican Republic, Haiti, Jamaica, Mexico ...

, a humanitarian NGO that offers volunteers practical experience in medical, education, and community enrichment programs {{disambig