A1

[ey-wuhn]

A1 is generally used to refer to the A1 paper size.

A1, A01, A001, A-1, A.I, A.1 or A 1 may also refer to:

Entertainment and broadcasting

A1 album may refer to :

A1 (Ertuğ album), a 2008 album by Turkish pop singer Ertuğ Ergin
A1 (Tony Cetinski album), a 1998 album by Croatian pop singer Tony Cetinski

A1 (band), an Anglo-Norwegian boy band with the 1999 single "Be the First to Believe"
A1 (comic), a British anthology comic created in 1989
A1 film may refer to :

A1 (1999 film), a Syrian film (article on IMDb.com)
A-1 Headline, a 2004 Hong Kong film

A-1 Pictures, is a Japanese animation studio
A 1 (radio), an Austrian radio
A-1 (rap), a rap artist/band with a 1999 album called Mash Confusion produced by Sick Wid It Records/Jive and featured on the E-40 Charlie Hustle: The Blueprint of a Self-Made Millionaire album
A1 TV, a television channel in Macedonia
A-One, a Russian music television channel
America One, a television network in the United States, successor to Channel America
A1, nickname for fictional character Battle Angel Alita, as her nickname on Tuned days
A1, or Adventure One, a TV channel now known as National Geographic Adventure or "Nat Geo Adventure"
A.I. Artificial Intelligence, a 2001 science fiction film
A.I Company, a Japanese developer of the 1990 Wrath of the Black Manta video game
A1Plus Filmproduktion, a German producer of Television and other Film productions

Commercial products

A1 (phone operator), a mobile phones brand name in Austria
A1 Steak Sauce, a brand of condiment
Canon A-1, a camera by Canon, manufactured from 1978-1985
AVM A1-Card, the product name of the company AVM GmbH for an ISDN card

Sports

A1 in basketball may refer to :

A1 Ethniki, the top Greek basketball league
A1 League of Herzeg Bosnia, a second-division basketball league in Bosnia and Herzegovina for Croatian clubs
A1 Liga, the highest level basketball league in Croatia

A1 Bregenz HB, a Handball team from Bregenz, Vorarlberg in Austria
A1 Grand Prix series in car racing
A1 in volleyball may refer to :

A1 Ring, the Österreichring race track at which the Austrian Grand Prix was run
A1 World Combat Cup, an Kickboxing organizations
A-1 (wrestler), stage name for Alastair Ralphs (1977-), a Canadian professional wrestler
a climbing grade

Transportation

Aircraft

A-1 Skyraider, a United States Air Force/Navy single-seat attack bomber
Alter A.1, a 1917 German single-seat biplane fighter aircraft
Ansaldo A.1 Balilla, a 1917 Italian fighter aircraft
Arpin A-1, a 1938 unorthodox monoplane aircraft
Fokker A.I, a 1910s German two-seat observation aircraft
Gotha A.I, a German 1910 Rumpler Taube model
Jet A-1, a jet fuel type
Pfalz A.I, a Idflieg A-class designations aircraft

and also :

A-1, a designation in the Brazilian Air Force for the AMX International AMX fighter aircraft

Cars

Audi A1, super-mini automobile to be released in 2009
Chery A1, a 2007 Chinese Chery Automobile model

Railways

Bavarian A I, a 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
PRR A1, an American PRR locomotives
Prussian A 1, a 1907 German Prussian railbus
SP&S Class A1, a 1907 steam locomotives class
Plan A1, the codename for the high-speed railway to Jerusalem
the UIC classification for 0-2-2 the Whyte notation for railway locomotive wheel arrangements
A1, a railway line in Hamburg and Schleswig-Holstein, see AKN
A1 Steam Locomotive Trust

Shipping

A1 (shipping), a symbol indicating shipbuilding quality
USS A-1, multiple US Navy ships
A1, the Division 1 (personnel management) departments in the German navy from Command level of a flotilla
Jet Fuel A-1, see Jet fuel submarines :
A1 type submarine, a World War II Imperial Japanese Navy submarines class
HMS A1, a British A class submarine of the Royal Navy

Rocket

Saturn A-1, a 1959 American rocket
A1, a German rocket design in the Aggregate series from the 1930s

Classification

A1, the driving class for light motorcycles up to 125 cc, see Driver's license

A1 roads

motorways :

A1 is the designation for the majority of the Highway 1 route in Australia.
A1 Westautobahn, a motorway in Austria
A1 (Bosnia and Herzegovina), a highway that carries Corridor Vc
A1 autoroute (France)
A1 highway (Croatia), connects Zagreb to the second largest city Split and continues on to Dubrovnik (finished up to Šestanovac)
A1 highway (Kenya), a long road in Kenya from Tanzanian to Sudanese border
A1 highway (Lithuania), connecting Vilnius to Klaipėda
A1 motorway (Belgium), connecting Brussels, Antwerp to Breda
A1 motorway (Cyprus), connecting Nicosia to Limassol
A1 Motorway (Italy), connecting Milan to Naples
A1 motorway (Luxembourg), connecting Luxembourg City to the German A64
A1 motorway (Netherlands), connecting Amsterdam to Enschede and further on to Germany (direction Osnabrück)
A1 motorway (Romania), connecting Bucharest to Piteşti
A1 motorway (Serbia), connecting Belgrade to Niš via Leskovac
A1 motorway (Slovenia), connecting Maribor to Koper via Ljubljana
A1 motorway (Switzerland), connecting St. Margrethen to Geneva
Autostrada A1 (Poland), a planned highway that will span Poland from north to south
A1 - Auto-estrada do Norte, in Portugal, connecting Lisbon and Porto
Autovía A-1, a Spanish autovía connecting Madrid to Irún (French border)
Greek National Road 1
Interstate A-1 in Alaska
Bundesautobahn 1 (Germany), connecting Oldenburg (Holstein) to Saarbrücken
Trakiya motorway in Bulgaria, carrying the code A1, connecting Sofia and Burgas via Plovdiv
the Asiahighway A1 connecting from Turkey to Vietnam roads :
A001, Ruta Nacional A001 (Argentina)
A1 national road (Latvia), connecting Riga to Ainaži
A1 road (Great Britain), a key artery connecting London to Edinburgh, and many towns and cities in between. See A1 road (London) for the London sections of the road
A1 road (Isle of Man), connecting Douglas and Peel
A1 road (Northern Ireland), connecting Belfast to Newry and to Dublin in the Republic of Ireland via the N1/M1.
A1 road (Sri Lanka), a trunk road connecting the capital city of Colombo to Kandy
A1 road (Zimbabwe), a National Route in Zimbabwe between Masvingo and Beitbridge
National Road 1A (Vietnam), connecting the northernmost and southernmost areas of the country

Biology

A1, a variant of blood groups alleles A in AB0-blood group system
A1 broth, a substance used in microbiology to detect fecal coliforms
A1 (primary auditory cortex), as compared with V1 (primary visual cortex) or S1 (primary somatosensory cortex)
Adenosine A1 receptor
Annexin A1
Apolipoprotein A1
ATC code A01, a division of the Anatomical Therapeutic Chemical Classification System
HLA-A1, a human MHC genetic serotype
Phospholipase A1, an enzyme
А1 and А2, two radioactive sizes

Other uses

A1, a computer security class
A1 Mine Settlement, Victoria, a town in Victoria, Australia
A1 (star), a massive binary star system located in NGC 3603
Company A-1, an outfit in the Texas A&M Corps of Cadets
a designation for Astérix (satellite), a 1965 French satelite
A1, a grade for officials in Germany
A1, a theater term for a sound operator
A1 Company, a company in Hong Kong
A1, a code-name for the Microsoft security service Windows Live OneCare
A1, the paper size and type ISO 216
A1, a recovery business based in Merseyside
A1, a level of the Common European Framework of Reference for Languages, see Common European Framework of Reference
A1, the designation for air force headquarters staff concerned with personnel and administration
A 1, Svea artilleriregemente designation, a former Swedish Army artillery regiment
A01, Encyclopaedia of Chess Openings code for Larsen's Opening
A-001, the second abort test of the Apollo spacecraft
L1 A1, a British self load rifle
L1 A1 (grenade thrower), a simply developed military weapon for firing shells
A1, a program at Modern Western square dance