{{Self reference|For the Wikipedia F2 criterion for speedy deletion, see {{slink|Wikipedia:Criteria for speedy deletion#F2}}.}} {{wiktionary|F2}} '''F2''', '''F.II''' or similar may refer to: {{tocright}}
==Science and mathematics== * F<sub>2</sub>, the chemical formula for fluorine * <math>\mathbb F_2</math> or GF(2), in mathematics, the Galois field of two elements * F2, a category in the Fujita scale of tornado intensity * F2 hybrid, a type of crossing in classical genetics * F2 layer, a stratum of the Earth's ionosphere * F-2 mycotoxin or zearalenone, a chemical produced by fungi * NIST-F2, an atomic clock
==Motorsports== *Formula Two, a type of open-wheel formula racing category first codified in 1948. *FIA Formula 2 Championship, a second-tier single-seater championship held from 2009 to 2012. *FIA Formula 2 Championship, a second-tier single-seater championship held since 2017.
==Medicine== * F2 or Foundation Year 2, part of the UK Foundation Programme for postgraduate medical practitioners * F-2 (drug), a psychedelic drug * F2-isoprostane, a compound formed ''in vivo'' from fatty acids * F2 gene, present on human chromosome 11, encodes for thrombin
==Films== *''F2: Fun and Frustration'', a 2019 Indian Telugu language film starring Venkatesh and Varun Tej
==Technology== * {{keypress|F2}}, a function key on a computer keyboard * F2 or flat twin engine, a type of two-cylinder internal combustion engine * Anik F2, a Canadian geostationary communications satellite * Nikon F2, a professional SLR camera
==Transportation== ===Aviation=== * Fly Air, IATA designator F2, a Turkish private airline * Fieseler F2 Tiger, a German single-seat aerobatic biplane * Flanders F.2, a 1911 British experimental single-seat monoplane aircraft * Fokker F.II, a 1919 German early airliner * Metropolitan-Vickers F.2, a 1941 British early turbojet engine * Boeing Customer Code of Turkish Airlines
===Rail=== * EMD F2, a class of GM diesel freight locomotive built in 1946 * H&BR Class F2, a class of 0-6-2T steam locomotives of the Hull and Barnsley Railway
===Road=== * Alta F2, a 1952 British racing car * DKW F2, a 1930s German small car * Marussia F2, a Russian large luxury car
=== Boat ===
* F2, the Sydney Ferries' services to Taronga Zoo
==Military== ===Air=== * Beechcraft F-2 Expeditor, an American twin engine reconnaissance aircraft * Blackburn F.2 Lincock, a 1928 British single-seat lightweight fighter * Bristol F.2 Fighter, a 1916 British two-seat biplane fighter and reconnaissance aircraft * Dassault Mirage F2, a 1960s French prototype two-seat attack fighter * Fairey F.2, a 1917 British fighter prototype * Felixstowe F.2, a 1917 British First World War flying boat * Hunter F 2, a 1953 Hawker Hunter fighter aircraft variant * Lübeck-Travemünde F.2, early German reconnaissance floatplane * McDonnell F-2 Banshee, a carrier-based jet fighter aircraft of the 1950s * Mitsubishi F-2, a Japanese fighter aircraft, based on the F-16 Fighting Falcon * RAF Tornado F2, a long-range, twin-engine swing-wing interceptor * F 2 Hägernäs, a former Swedish Air Force wing
===Sea=== * {{HMS|F2}}, an F class First World War submarine of the Royal Navy * {{USS|F-2|SS-21}}, a 1910s F-class submarine of the United States Navy * 20 mm modèle F2 gun, a French naval gun
===Land=== * F2 81mm Mortar, an Australian weapon * FR F2 sniper rifle, the standard sniper rifle of the French military * KMW F2, a German modular wheeled armoured vehicle
==Other uses== * F2 (classification), a wheelchair sport classification * F-2 visa, a U.S. visa type for dependents of students * F2Freestylers, British freestyle football duo also known as The F2 * F2 Logistics, Filipino logistics company ** F2 Logistics Cargo Movers, volleyball team owned by the logistics company of the same name * Formula Two, a type of open-wheel racing * F2, the second formant
==See also== * 2F (disambiguation) * FII (disambiguation) <!-- because F.II redirects here for the Fokker --> * F3 (disambiguation) * Fun and Frustration (disambiguation), Indian film series, abbreviated F2
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