L2

L2, L², L02, L II, L.2 or L-2 may be :

• L2, the language acquired as a second one, after the mother tongue
• L², the official youth wing of Flemish Progressives, a Flemish political party
• L2 cache, the Level-2 CPU cache in a computer
• L² cohomology, a cohomology theory for smooth non-compact manifolds M with Riemannian metric
• L2 Design Group, a publishing company specialised in strategy games board
• L-2 Grasshopper, a Taylorcraft aircraft used by the United States Army Air Forces in World War II
• L2 point, the second Lagrangian point in an astronomical Solar System
• L2 Puppis, a star which is also known as HD 56096
• The space L² space of square-integrable functions, in mathematics
• L² norm, in mathematics
• The space ℓ² of square-summable sequences, in mathematics
• L-2 visa, a document used to enter the United States by the dependent spouse and minor unmarried children of qualified L-1 visa holders
• Arado L II, a 1929 German two-seat, high-wing sporting monoplane
• ASJA L2, a 1932 Swedish biplane trainer aircraft
• ATC code L02 Endocrine therapy, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Chesapeake and Ohio Class L-2 and L-2a, an American 4-6-4 "Hudson" type steam locomotives model
• Milwaukee Road class L2, an American 2-8-2 "Mikado" type steam locomotive
• GSWRI Class L2, a Great Southern and Western Railway Steam locomotive of Irish steam locomotive
• Haplogroup L2 (mtDNA) in human genetics
• Junkers L2, an aircraft engine whose development lead to the Junkers L5
• Lawson L-2, a 1920 American biplane airliner
• Macchi L.2, an Italian biplane flying boat
• SP&S Class L-2, a 1881 steam locomotives class
• L-2, an outfit in the Corps of Cadets at Texas A&M University in College Station, Texas
• a class of FM radio broadcasting in North America
• a frequency used in GPS satellite navigation signals, see GPS signals, a newer version is the L2C frequency
• a L-carrier cable system developed by AT&T
• a second language, as opposed to a first or native language or a foreign language, or a target language being learned
• A series of fragmentation hand grenades used by the British armed forces (American M61 copies), before being replaced by the L109 grenade
• Internet slang, standing for "learn to"
• Layer 2 of the OSI model, in computer networking
• Ligue 2, a league in French football (soccer)
• Lineage II, a MMO game
• Lumines II, a puzzle game
• Leprechaun 2, 1994 film
• Lynden Air Cargo IATA code
• PZL Ł.2, a 1929 Polish liaison aircraft
• The L designation given to the Sterling submachine gun in the British armed forces
• The module code for the Dungeons & Dragons adventure The Assassin's Knot
• The second generation limiter audio effect by Waves Audio, both in hardware and software
• The second lumbar vertebra of the vertebral column, in human anatomy
• Walker County Airport (former FAA LID: L02)