XL explained

XL or variants may stand for:

Arts and entertainment

XL Airways France, a French airline
XL Airways Germany, a German charter airline
XL Leisure Group, a major United Kingdom tour operator, which ceased operations in 2008
- XL Airways UK, a defunct British airline which was part of XL Leisure Group
LAN Ecuador (IATA airline code XL)
the base trim level for Ford trucks

XL Axiata, an Indonesian mobile phone network operator
XL Center, a civic center in Hartford, Connecticut, United States
XL Cola, a Swedish soft drink
XL Group, a financial services company headquartered in Ireland with executive offices in Bermuda
XL Recordings, a British independent record label
Excel Esports, a British esports organization (shortened name is "XL")
North Texas Intermediate Sanctions Facility, a privately operated prison facility (TDCJ shorthand is "XL")

X_L, inductive reactance, a property of an inductor
XL (programming language), a programming language designed to support concept programming
XL models, of the Atari 8-bit computers (1200XL, 600XL, 800XL)
Weather Star XL (also known as just XL), a computer used by The Weather Channel for local forecasts
Nintendo DSi XL, the fourth and final model in the Nintendo DS line, released in 2009, and a larger version of the Nintendo DSi
Nintendo 3DS XL, the second model in the Nintendo 3DS line, released in 2012, and a larger version of the original Nintendo 3DS
New Nintendo 3DS XL, the fifth model in the Nintendo 3DS line, released in 2014, and a larger version of the Nintendo 3DS XL and New Nintendo 3DS (which is a larger version of the original 3DS)
New Nintendo 2DS XL, the sixth model in the Nintendo 3DS line, released in 2017, and a larger version of the Nintendo 2DS

American bully XL, type of dog
40 (number) in Roman numerals
XL (Extra large), a clothing size
Excess-of-loss reinsurance, a particular non-proportional type of reinsurance contact