FL, Fl or fl may stand for:

• FL (complexity), a class of functions in complexity theory.
• FL programming language.
• FL Studio music production software package.
• FL Group, an Icelandic investment company with an emphasis on flight and tourism industry.
• Fully Licensed restaurants.
• The Football League in England.
• flight level in aviation, a nominal altitude designation.
• foreign language.
• Fanlisting
• freelancer, a self-employed professional.
• Freelancer (computer game).
• footlambert, a unit of luminance.
• Flawless, a measure of diamond clarity.
• fish length, in angling.
• forestay length, in sailing.
• fl a common typographic ligature
• [FL.co.uk a rare 2 letter co.uk domain name]

FL may also be a code for: In computational complexity theory, the complexity class FL is the set of function problems which can be solved by a deterministic Turing machine in a logarithmic amount of memory space. ... FL (short for Function Level) is a programming language created at the IBM Almaden Research Center by John Backus, John Williams, and Edward Wimmers in 1989. ... FL Studio (formerly Fruity Loops) is a music production software package, also known as a digital audio workstation, programmed by Didier Dambrin (also known as Gol) and created by Image-Line Software. ... FL GROUP, formerly known as Flugleiðir, is an Icelandic investment company with an emphasis on investment in flight and tourism. ... BYO (Bring your own) is a term used at restaurants to show that you can bring your own drinks (usually alcoholic beverages), as opposed to Fully Licensed where such drinks must be bought at the respective restaurant, which would be fully licensed to sell alcohol. ... The Football League is a league competition for professional football clubs in England, the oldest such competition in world football. ... In aviation, a flight level is the nominal altitude of an aircraft referenced to a standard pressure datum, as opposed to the real altitude above mean sea level. ... A foreign language is a language not spoken by the indigenous people of a certain place: for example, English is a foreign language in Japan. ... A fanlisting is a website created by a fan of a particular subject, with the aim of gathering together a list (either in database format or hardcoded HTML) of other fans of that particular subject. ... A freelancer or freelance worker is a person who pursues a profession without a long-term commitment to any one employer. ... Freelancer is a space simulation computer game developed by Digital Anvil and published by Microsoft in March 3, 2003 for Microsoft Windows. ... The unit of measurement of brightness (in the USA). ... Luminance (also called luminosity) is a photometric measure of the density of luminous intensity in a given direction. ... Diamond clarity is a quality of diamonds relating to the existence and visual appearance of internal defects of a diamond called inclusions, and surface defects called blemishes. ... In writing and typography, a ligature occurs where two or more letterforms are written or printed as a unit. ...

• AirTran Airways (IATA code).
• Liechtenstein (country code for vehicles).
• Florida (United States postal abbreviations)

fL is the abbreviation for the metric unit of volume the femtolitre (US femtoliter). AirTran Airways (NYSE: AAI), is a low-cost airline based in Orlando, Florida, USA and is a subsidiary of AirTran Holdings. ... The International Air Transport Association is an international trade organization of airlines headquarted in Montreal, Quebec, Canada. ... This article or section does not cite its references or sources. ... The following is a list of abbreviations used by the United States Postal Service. ... The femtolitre (US femtoliter) is the metric unit of volume equal to 10-15 litre, or one quindecillionth (European) or one quadrillionth (American) litre. ...

fl. is the abbreviation for various coins named florin, guilder or gulden. Florin may refer to this modern currency: Aruban florin. ... Guilder is the English name for the Dutch Gulden. ... The guilder (Dutch gulden), represented by the symbol ƒ, was the name of the currency used in the Netherlands from the 15th century until 1999, when it was replaced by the euro (coins and notes were not introduced until 2002). ...

fl. is used by historians as an abbreviation for "floruit" (Latin for "flourished"), to indicate periods when civilizations or persons were influential. It is normally used only when dates of birth or death are unknown. Floruit (or fl. ...

fl. is similarly used by paleontologists to indicate periods of greatest success and diversity for a taxon.

This page disambiguates a two-character combination. If an article link referred you to this page, you may wish to change the link to point directly to the intended article.