A2

A2 can refer to:

• A2 (rocket), a German design of rocket during World War II
• The Zweiton (German) Stereo sound system used in some countries for their analogue television broadcasting.
• The A-level education qualification in England, Wales and Northern Ireland
• A street name for the drug benzylpiperazine (BZP).
• A2 is an international standard paper size (420×594 mm), defined in ISO 216
• Cielos del Peru IATA code
• HMS A2, an A-class submarine of the Royal Navy
• USS Adder (SS-3), a Plunger-class submarine of the United States Navy
• Radio Station A2 in Lithuania
• In town and country planning in the UK, A2 is the code for permission to use specific land or premises for financial and professional services.

The A2 was the second rocket design in the Aggregate series, part of the German Army research program that lead to the A4 (V-2) rocket used in World War II. Under the program at Kummersdorf headed by Walter Dornberger, the A2 was designed in 1934 by Wernher von Braun. ... Zweiton (two sounds) is a two-channel television sound transmission system used in Germany and other countries. ... An A-level, short for Advanced Level, is a General Certificate of Education usually taken during Further Education and after GCSEs. ... Benzylpiperazine (BZP) is a recreational drug with euphoric, stimulant effects. ... There have been many standard sizes of paper at different times and in different countries. ... ISO 216 specifies international standard (ISO) paper sizes, used in most countries in the world today. ... Cielos del Peru is a cargo airline based in Callao, Peru. ... HMS A2 was an early Royal Navy submarine. ... USS Adder (SS-3) (later renamed A-2), a Plunger-class submarine, was one of the earliest submarines used by the United States Navy. ... This article provides an overview of the communications infrastructure of the country of Lithuania. ... Town and Country Planning is the system by which the British government seeks to maintain a balance between economic development and environmental quality in England. ...

A-2

• The A-2 or AJ Savage aircraft.
• A-2 (programming language), a programming language created by Grace Hopper

On June 24, 1946, the U.S. Navy awarded North American Aviation a contract to build the aircraft that would become the AJ Savage. ...

a 2

• a French element of musical notation directing that a line of music be played by any instruments reading that line, typically used to cancel a solo marking.

Music notation is a system of writing for music. ...

A²

• nickname for Ann Arbor, Michigan

Ann Arbor is a city in the U.S. state of Michigan. ...

Roads, Freeways, Highways

• A2 (Austria) see Highways section of the "Transportation in Austria" article
• A2 road (England), connecting London to Dover
• Bundesautobahn 2 (Germany), an autobahn connecting the Ruhr Area to Berlin
• A2 (Portugal) see Highways section of the "Transportation in Portugal" article
• A2 freeway, Romania
• A2 (Slovenia) see List of highways section of the "Transportation in Slovenia" article
• A2 (Switzerland), a motorway in Switzerland connecting Basel to Chiasso
• A2 (Netherlands), a motorway in Netherlands connecting Amsterdam to Maastricht