A1
A1, A-1 or A.1.may refer to:
Education
- A1, the Basic Language Certificate of the Common European Framework of Reference for Languages
- Language A1, the former name for "Language A: literature", one of the IB Group 1 subjects
- A1, a secondary school subdivision in the Congolese education system
- A1, a baccalauréat series in the education system of some parts of France
- A1, a baccalaureate in the Gabonese education system, see Education in Gabon
- A1, the highest category of Qualified Flying Instructor in the Central Flying School of the UK Royal Air Force
Grades
- A1, a grade for the Leaving Certificate, a qualification in the education system of Ireland
- A1, the highest obtainable grade for the Sijil Pelajaran Malaysia examination in Malaysia
- A1, a grade for the Senior Secondary Certificate Examination in Nigeria, see Education in Nigeria
- A1, a grade for the Singaporean GCE 'O' Level, an examination in the education system of Singapore
- A-1, an Academic grading in Pakistan commonly used in the education system of Pakistan
Entertainment
Books, magazines, comics and manga
- A1 (comics), a comics anthology
- A-1 Comics, a 1944-1955 Golden Age comics publication
- A1 Magazine, a United Kingdom luxury lifestyle magazine specializing in unique and costly products
- A1—The Great North Road, a book by Paul Graham (photographer)
Cinema and films
- A-1 Headline, a 2004 Hong Kong film
- A 001, operazione Giamaica (Our Man in Jamaica), a 1965 Italian adventure film directed by Ernst R. von Theumer
- A1, a 1999 Syrian film, see List of Syrian films
- Companies
- A1 Film Company, a Burmese cinema company
- A-1 Pictures, a Japanese animation studio
Games
- A1 Games, an American video game publisher for the PlayStation
- A1 - Slave Pits of the Undercity, a component of Scourge of the Slave Lords, and adventure module for the Dungeons & Dragons role-playing game
- Larsen's Opening, a chess move, A01 in ECO code
- A1, a square on a chessboard
Music and dance
- A1 (band), a British-Norwegian boy band
- A1, an album by Ertuğ Ergin
- A1, an allbum by Tony Cetinski
- A-1, an American rap group behind the album Mash Confusion
- A-One (band), a Mandopop group
- A One, an album by Ayumi Hamasaki
- Aone Beats or Aone, music producer
- A1, a part in contra dance choreography
- A-1 Sound Studios, a recording studio owned by Herb Abramson
Television and radio
- A-One (TV channel), a Russian music channel
- A1 TV channel (Macedonia)
- A1, a promotional name for CHIN (AM) radio in Canada
- A1 Report, a television station in Albania
- A-1 Detective Agency, a fictional detective agency in the radio series I Love a Mystery
- A 1, see List of radio stations in Austria and Liechtenstein
- A1, a Slovenian radio network owned by Radiotelevizija Slovenija
- America One, an American television network
Military, government and politics
- A-1 Skyraider, a United States military attack aircraft
- A-1 flying jacket, the predecessor of the A-2 flying jacket
- Company A-1, an outfit in the Texas A&M Corps of Cadets
- US A-1 visa
- A1, a class of South Korean visa
- Svea artilleriregemente, a Swedish Army regiment
- A-1 (code) was the designation for a code used by the United States Navy during World War I
- A1, a designation of military staff in the continental staff system
- A1, a rank in the European Civil Service
- A1, an electoral alliance in Suriname, see List of political parties in Suriname
- A-1, a grade of Republic of China List of orders, decorations and medals of the Republic of China#General Armed Forces medals
- A-1, a classification in the Status of Indian cities
- Forces A1, a naval force in the Battle of Crete, see Crete order of battle
- A-1, Brazilian Air Forces designation for the AMX International AMX aircraft
- Kampfgeschwader 53, from its historic Geschwaderkennung code with the Luftwaffe in World War II.
Science
Astronomy
- A1, a class of star, see stellar classification
- "A1" subobject desigations
Biology
- A1 broth, a substance used to detect fecal coliforms
- ATC code A01 Stomatological preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System
- Combretastatin A1, a potent cytotoxic agent
- HLA-A1, a human leukocyte antigen serotype
- Proanthocyanidin A1, an A type proanthocyanidin
- Vitamin A1, the animal form of vitamin A
- A1, a segment of the anterior cerebral artery
- the first anal vein in the Comstock-Needham system of insect wing vein naming
- Noradrenergic cell group A1
Ecology and earth science
- A1, a landslide classification factor
- A-1, a class in the AASHTO Soil Classification System
- Zone A1, a zone in the Greek Alonissos Marine Park in the North Aegean Sea
Mathematics
- A¹ homotopy theory, a concept related to algebraic topology
- A1, an 1844 paper by mathematician Hermann Grassmann
- A1, the alternating group on a set with one only element
Neuroscience & Psychology
- Primary auditory cortex, the region of the cerebral cortex where sound is processed
Sports
Leagues or divisions
- A-1 (wrestler)
- A1 Ring, the former name for the Red Bull Ring, a motorsport circuit in Spielberg, Austria
- A1, a climbing grade
- A1, a ranking in Keirin track cycling
Competition
- A1 Grand Prix, a motorsport racing series
- A-1 Liga, the top basketball league in Croatia
- HEBA A1, the top basketball league in Greece
- Phase A1, a phase in a combined driving equestrian competition
Technology
- A1 paper size (59.4×84.1 centimetres or 23.4×33.1 inches)
- A-1, the first series of Disney's Audio-Animatronics figures
- A-1, an alternative name for KS 150, a nuclear reactor in Czechoslovakia, decommissioned in 1979
Computing
- A-1, a programming language that was a successor to the A-0 System written by Grace Hopper in the 1950s
- A1, codename for Windows Live OneCare
- A1, a class of computer security specified in the Trusted Computer System Evaluation Criteria
- Acer Aspire One netbook computer
Commercial brands and companies
- A1 Superlink, an Australian Internet service provider merged in 2000 into the Froggy (ISP)
- A-1 Supply, a former name of American gaming machine manufacturer International Game Technology
- A1 Telekom Austria, an Austrian mobile network operator
Electronic products
- Canon A-1, a 35mm SLR camera manufactured from 1978 to 1985
- Canon XH-A1, a handheld prosumer HDV camcorder released in 2007
- Minolta Dimage A1, a digital camera produced in 2003
- Sony HVR-A1, the prosumer version of the Sony HDR-HC1 camcorder, which was introduced in 2005
- AVM A1-Card, an ISDN card produced by German company AVM GmbH
- A1 VSTi, a 2002 synthesizer software program produced by Waldorf Music
Vehicles and transport
- A1 (shipping), a symbol indicating shipbuilding quality
- A1, a tire code
Aircraft
- A-1 (airship)
- A-1 Skyraider
- Albastar A1, glider
- Model 3 A-1, an Aeronautical Products rotorcraft, see List of rotorcraft
Cars
- A1 Grand Prix car
- Anadol A1, a 1966 Turkish car
- Arrows A1, a 1978 British racing car
- Audi A1, a supermini automobile produced from 2010
- Audi Quattro A1, a 1983 rally car
- Chery A1
- Scania A1, a 1901 car
- Toyota A1, a 1935 car prototype
- A1 registration plate, an UK vehicle registration plate
- A1, a Volkswagen Group A platform
Motorcycles
- A1, a Haden (motorcycle) frame
- A1, a Motosacoche motorcycle
- A-1, a 1976 Alligator (motorcycle)
- Automatic A1, a Tomos motorcycle
- A1 Samurai, see List of Kawasaki motorcycles
Roads
- One of many A1 roads, in several countries. See List of A1 roads.
Seacraft
- Military boats
- A-1 lifeboat
- USS A-1, the name of multiple US Navy ships
- ARA Comandante General Irigoyen (A-1), an Argentine Navy auxiliary ship
- Submarines
- HMS A1, a British A class submarine of the Royal Navy
- A1 type submarine, a type of Japanese Navy submarine
- HNoMS Kobben (A-1), a Royal Norwegian Navy submarine
Spacecraft
- Satellites
- A-001, the second abort test of the Apollo spacecraft
- Anik A1, a Canadian satellite
- Aussat (Optus) A1, a 1985 Australian telecommunications satellite
- Orbcomm A1, a 1997 American low Earth orbit communications satellite
- Palapa A1, the first 1976 Indonesian Palapa satellite
- Superbird A1, a satellite put into orbit by an Ariane 4 launch on 1 December 1992
- A1, a designation for the French satellite Astérix (satellite)
- Rockets
- A1, a model of German Aggregate Series Rocket from World War II
- Hermes A-1, a rocket in the Hermes project
- Saturn A-1, a 1959 American rocket
- Scout A-1, a 1965 American rocket
- Fictional
- Alpha-One spacecraft, a fictional spacecraft in the film Buzz Lightyear of Star Command: The Adventure Begins
Trains and public transit
- A1 Steam Locomotive Trust, a charitable trust
- Ayrshire Bus Owners (A1 Service), a bus operator in Scotland
- Bavarian A I, an 1844 German steam locomotive model
- LB&SCR A1 class, a class of locomotices designed by Stroudley and known as the Terriers
- LNER Gresley Classes A1 and A3, a locomotive designed by Sir Nigel Gresley, including the famous Flying Scotsman
- LNER Peppercorn Class A1, a Pacific locomotive designed by A. H. Peppercorn
- NCC Class A1, a 1901 Irish 4-4-0 passenger steam locomotives
- Nishi-magome Station, a Japanese subway station
- PRR A1, an American PRR steam locomotive
- Prussian A 1, a 1907 German Prussian railbus
- RER A1, a rapid transit line in France, see: RER A
- SP&S Class A1, a 1907 steam locomotives class
- Plan A1, the codename for the high-speed railway to Jerusalem
- Type A1 or California combination, a type of electric tram, see: Trams in Adelaide#Electric tram types
- 0-2-2, the UIC classification for the Whyte notation for railway locomotive wheel arrangements
Other uses
- A1 Mine Settlement, Victoria, Australia
- Sound operator, a member of a theatre crew commonly designated A1
- A1 or A-1, two investment grades for bonds
- A1, a country risk rating assigned by Compagnie Francaise D’assurance Pour Le Commerce Exterieur (Coface)
- A1, a colour grade used in shrimp marketing
- A1, a learner division in the Common European Framework of Reference for Languages
- A1, a Race (classification of human beings)#In law enforcement used by Scotland Yard
- A.1 scale, the first formalised atomic time scale defined by USNO in the International Atomic Time standard
- Sea Area A1, a designation in the Global Maritime Distress Safety System
- A1, a planning class from the Town and Country Planning (Use Classes) Order 1987 in the UK
- A.1. Steak Sauce
See also
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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If an internal link led you here, you may wish to change the link to point directly to the intended article.