A1

A1 and A-1 are often used at the start of commercial business names so that they appear first in the telephone directory. For example, "A1 Cleaning Services" or "A1 Tool Hire". A1 means "very good" and is derived from the shipping insurers, Lloyds of London's description of a first class ship.

A1

A1 can mean:
*a1 (band), a British boy band
*A1 (comic) is a British anthology comic
*A1 (milk), milk containing the A1 -casein protein
*A1 (rocket), a German rocket design from the 1930s
*A1 (shipping), a symbol indicating shipbuilding quality
*A1 (TV station) is a television channel in Macedonia
*A1 paper size, paper size as defined by ISO 216
*A1 Grand Prix series
*A1 Steak Sauce, a brand of condiment
*A1 broth, used to detect fecal coliforms
*A1 Mine Settlement, Victoria, a town in Victoria, Australia
* A1 Ring, the race track at which the Austrian Grand Prix was run from 1997 to 2003 (formerly called Österreichring)
* 0-2-2 (Whyte notation), as the equivalent UIC classification for railway locomotive wheel arrangements
* America One, a television network in the United States
* HMS A1, a British A class submarine of the Royal Navy
* the primary auditory cortex, that is, the part of the brain which processes hearing
* RTV Slovenia, the first programme of Radio Slovenia
* TCSEC, A security class
* In town and country planning in the UK, A1 is the code for permission to use specific land or premises for general retail.
* The first level avhieved in the Common European Framework of Reference for Languages when learning a language
* LNER Class A1/A3,a locomotive designed by Sir Nigel Gresley,including the famous No 4472 "Flying Scotsman". Origianaly Class A1, later reclasified Class A3
* LNER Peppercorn Class A1 a Pacific locomotive designed by A. H. Peppercorn.
* A1 was the code-name for the Microsoft security service Windows Live OneCare
* USS A-1 (disambiguation), US Navy ships

A-1

* A-1 Skyraider, a United States Air Force single-seat attack bomber
* USS A-1 (SP-1370), a houseboat taken over by the United States Navy in 1917
* USS Plunger (SS-2), the lead ship of the Plunger class submarine series
* Battle Angel Alita, as her nickname on Tuned days.
* Alastair Ralphs (professional wrestler) (born 1976), as one of his stage names
* Canon A-1, a camera by Canon

Roads

There are several roads and highways named A1:

entries are alphabetical by country
*A1 Westautobahn, a motorway in Austria
*A1 road (Belgium), Brussels - Antwerp - Breda
*Trakiya motorway in Bulgaria, carrying the code A1, connecting Sofia and Burgas via Plovdiv.
*A1 motorway (Croatia), connecting the capital Zagreb to the second largest city located in southern Dalmatia, Split.
*A1 highway (Cyprus), connecting Nicosia to Limassol
*A1 autoroute (France)
*Bundesautobahn 1 (Germany) connecting Oldenburg to Saarbrücken
*A1 road (Isle of Man), connecting Douglas and Peel
*A1 highway (Lithuania), connecting Vilnius to Klaipėda
*A1 (Luxembourg)
*A1 motorway (Netherlands)
*A1 road (Northern Ireland), connecting Belfast to Newry and to Dublin in the Republic of Ireland via the N1/M1.
*Autostrada A1 (Poland) - planned highway that will span Poland fron north to south.
*A1 - Auto-estrada do Norte, in Portugal, connecting Lisbon and Porto
*A1 freeway (Romania), connecting Bucharest to Piteşti
*A1 motorway (Slovenia), connecting Maribor to Koper via Ljubljana
*A1 (Switzerland), connecting St. Margrethen to Geneva
*A1 road (United Kingdom), a key artery connecting London to Edinburgh, and many towns and cities in between.