A4
A4, A 4 or A - 4 is:
- A standard paper size A4 format with the dimensions 210 mm × 297 mm (DIN 476/ISO 216)
- The sound of a in the four octave, see sound system
- A grade of officials in Germany, see Simple service
- The IATA code for the Argentine airline Southern Winds
- The international aircraft identifier of Tonga
- A military aircraft, see Douglas A-4
- A rocket project in the Third Reich, see unit 4
- The series of officially fastest steam locomotive in the world, see LNER Class A4
- A car model of the car manufacturer Audi, see Audi A4
- , alternatively called a deck of Volkswagen, the Golf is built on the PQ34 IV also
- In materials engineering a abbreviation for a stainless steel, alternatively known as V4A
- A gyroplane, see TsAGI A-4
- A degree of difficulty in technical climbing, see technical climbing
- The proprietary Apple A4 processor by Apple
- In mathematics, the alternating group of order 4
- A4, overseas territory in the GMDSS, Global Maritime Distress Safety System see # sea areas A1 to A4
A4, A 4 or A -4 is the name of the following highways:
- In Germany, the Federal Highway 4
- In Austria, the East motorway
- In Switzerland the highway 4 ( Switzerland )
- In Belgium the highway 4 (Belgium )
- In Bulgaria the Awtomagistrala A4
- French Autoroute A4
- In Italy, the Autostrada A4 ( Italy)
- In Croatia, the Autocesta A4
- In Luxembourg Autoroute 4 ( Luxembourg )
- In the Netherlands the Rijksweg 4
- In Poland the Autostrada A4 ( Poland)
- In Portugal the Autoestrada A4
- In Romania, the Autostrada A4 ( Romania)
- In Slovenia, the Avtocesta A4
- In Spain, the Autovia A-4 ( Autovia del Sur )
A4 is the name of the following highways:
- The Asian Highway A4 from Pakistan to China
- The Capricorn Highway in Australia
- Disambiguation
- Abbreviation