A2

• 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 Audi A2 car
• An A2 (theater) manages microphones for a performance.

A-2

• The A-2 or AJ Savage aircraft.
• The Abrial A-2 Vautour, a French sailplane built in 1925
• A-2 (programming language), a programming language created by Grace Hopper
• A-2 jacket, a leather flight jacket worn by USAAF pilots during WWII

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.

A²

• nickname for Ann Arbor, 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 - motorway in Poland, running from west to east through the middle of the country.
• 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
• Hemus motorway, a motorway in Bulgaria carrying the code A2

Lists of roads sharing the same title

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