A2
A2 , A 2 or A-2 stands for:
- an address in the Mannheim A-squares
- a standardized paper format (DIN 476 / ISO 216)
- the note a in the two-stroke octave, see tone system
- a grade for civil servants in Germany, see Simple service
- a variant of the blood group allele A in the AB0 blood group system, see blood group
- in materials technology also V2A, a corrosion-resistant stainless steel
- a transmission standard for television signals, two-channel sound
- a qualification from the Abitur in Great Britain, see Advanced Level
- a level of the European Framework of Reference for Languages, see Common European Framework of Reference for Languages
- a call station circuit with two telephones, see A2 circuit
- a leather jacket for the USAAF and USAF pilots, see flight jacket
- a concept of a European supersonic passenger jet as part of the LAPCAT project, see Reaction Engines A2
- a strong apple variety that is used for difficult locations and the construction of tall trunks, see document (plants)
- a level of difficulty in technical climbing, see difficulty scale (climbing) #Technical climbing
- the license class A2 for motorcycles
- a class for the transfer speed of SD cards
Streets:
- Bundesautobahn 2 , Germany
- South Autobahn , Austria
- Autobahn 2 (Switzerland)
- Motorway 2 (Belgium)
- Autoput Gradiška – Banja Luka in Bosnia and Herzegovina
- Awtomagistrala Hemus , Bulgaria
- Autoroute A2 , France
- Aftokinitodromos 2 , Greece
- Autostrada A2 (Italy)
- Autocesta A2 , Croatia
- Magistralinis kelias A2 , Lithuania
- Rijksweg 2 , the Netherlands
- Autostrada A2 (Poland)
- Autoestrada A2 , Portugal
- Autostrada A2 (Romania)
- Avtocesta A2 , Slovenia
- Autovía A-2 , Spain
- A2 (Cyprus)
- A2 (Kazakhstan)
- Asia Highway A2 from Iran to Indonesia
- Landsborough Highway in Australia
- A2 (Botswana)
- A2 (Ivory Coast)
- A2 (Kenya)
- A2 (Nigeria)
geographical objects:
- Botswana (ITU prefix: A2, international aircraft identifier)
- a sea area in the GMDSS, see Global Maritime Distress and Safety System # Sea areas A1 to A4
- a railway line in Schleswig-Holstein, see AKN Eisenbahn
Models:
- a vehicle model from the car manufacturer Audi, Audi A2
- a missile project in the Third Reich, Unit 2
- the locomotive series Badische A2
- the Alsace-Lorraine A 2 locomotive series
- a US Navy attack aircraft of the 1940s, see North American AJ
- a British Navy submarine, HMS A2
- the Merzario A2 , a Formula 1 racing car from the Italian racing team Team Merzario (1979)
a2 stands for:
- a playing instruction in the music notation (as an abbreviation of the Italian expression a due or the French à deux ; German "zu zwei"), in which the voice of two players should be played in unison , which is especially true for the double-cast wind parts (woodwinds, brass) or other instruments (such as two harps or marimbas) of the symphony orchestra occur. The opposite instruction is "1.", "1 °", "1st", "first" (the latter often e.g. with Mahler), or in the case of a solo passage also solo .
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