A1

  1. Noun.  A standard paper size, defined by ISO 216 to have dimensions: 841 x 594 mm (840.90 x 594.60 mm).
  2. Adjective.  In good health. .
  3. Adjective.  In excellent or top condition.
  4. Proper noun.  Under the International Union of Railways ("UIC") classification system, a steam locomotive that has two coupled driving wheels followed by two trailing wheels, with no leading wheels; also called an 0-2-2.
  5. Adjective.  first rate or excellent.
  6. Adjective.  (context, of a ship) in first class condition.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.