S 2

S2 or S II may refer to:

Science and technology

Mathematics

Biology and medicine

• British NVC community S2, a swamps and tall-herb fens community in the British National Vegetation Classification system
• Schneider 2 cells, or S2 cells, a commonly used Drosophila cell line
• Secondary somatosensory cortex, a brain area in the parietal cortex
• Sacral spinal nerve 2, a spinal nerve of the sacral segment
• Schedule 2, an Australian legal category assigned to drugs; See Standard for the Uniform Scheduling of Medicines and Poisons
• S2, the second sacral vertebrae
• S₂ (heart sound), a sound in cardiac auscultation
• ATC code S02Otologicals, a subgroup of the Anatomical Therapeutic Chemical Classification System

Computing

Transportation

Cars

• AS S2, a 1927 car manufactured in Poland
• Audi S2, a turbo-charged sports car
• Lotus Elise S2, a Lotus Elise production series of roadster automobile
• Porsche 944 S2, a 3l naturally aspirated Porsche 944 sports car

Roads and bus routes

Aviation and space

Rail

Locomotives

Passenger services

• S2 (Berlin), an S-Bahn service
• S2 (Dresden), an S-Bahn service
• S2 (Munich), an S-Bahn service
• S2 (Nuremberg), an S-Bahn service
• S2 (RER Vaud), an S-Bahn service in Switzerland
• S2 (Rhine-Main S-Bahn), an S-Bahn service
• S2 (Rhine-Ruhr S-Bahn), an S-Bahn service
• S2 (St. Gallen S-Bahn), an S-Bahn line in Switzerland
• S2, a planned Bremen S-Bahn service
• S2, a Hamburg S-Bahn service
• S2, a Hanover S-Bahn service
• S2, a RheinNeckar S-Bahn service
• S2, a Rostock S-Bahn service
• S2, a Stuttgart S-Bahn service
• S2, a Stadtbahn Karlsruhe service
• S2 (ZVV), a service of the S-Bahn Zürich in Switzerland
• Line S2 (BCR), a commuter rail service in Beijing
• Line S2 (Milan suburban railway service)
• Line S2 (Nanjing Metro), a suburban rapid transit line currently under construction in China
• Line S2 (Wenzhou Rail Transit), a suburban rapid transit line currently under construction in China
• FGC line S2, a suburban train service in Barcelona Province

Military

• Soviet submarine S-2, a Soviet World War II submarine
• Grumman S-2 Tracker, a US Navy aircraft
• Finnish torpedo boat S2, which sank in 1925
• USS S-2 (SS-106), a US Navy submarine
• Göta Signal Corps (designation S2), a 1944–1997 Swedish Army signal unit
• S2 (missile), the first deployed French land-based strategic missile
• S-2, a military intelligence officer on the staff of a regiment or battalion
• HMS Rorqual (S02), a 1956 British Royal Navy Porpoise-class submarine
• ORP S-2, Polish World War II motor gun boat

Organisations

Products

Cameras

• Nikon S2, a 35mm rangefinder camera produced between 1954 and 1958 as part of the Nikon S-mount range
• Nikon 1 S2, a digital mirrorless interchangeable lens camera
• Canon PowerShot S2 IS, a 2005 5.0 megapixel digital camera
• FinePix S2 Pro, a 2002 interchangeable lens digital single-lens reflex camera by Fuji
• Leica S2, a 2009 37 million pixel medium format digital single-lens reflex camera

Other uses

• Seremban 2, a suburb of Seremban, located in Negeri Sembilan, Malaysia
• S2, a version of the racing simulation Live for Speed
• S2, a district of the S postcode area, covering areas of eastern Sheffield
• Seattle Sounders FC 2, nicknamed S2
• Second year, in the Scottish education system
• S2 (classification), used for categorising swimmers based on their level of disability
• Splatoon 2, a 2017 video game for the Nintendo Switch
• Pitts Special, Two-Seat Aerobatics Biplane

See also