The Alternative English Dictionary: A1

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Entry definition

etymology 1 See the Wikipedia article , the international standard on paper sizes.
noun: {{head}}
  1. A standard paper size, defined by ISO 216 to have dimensions: 841 x 594 mm (840.90 x 594.60 mm) a sheet of A1 paper
etymology 2 From various rating systems, as that of or the condition of insured ships. First attested in 1837. Alternative forms: A-1, A 1
adjective: {{en-adj}}
  1. (informal) In good health.
  2. (informal) In excellent or top condition.
  3. (of a, ship) First-class. (Compare A 2 and A 3, which are inferior grades.)
etymology 3
proper noun: {{head}}
  1. Under the ("UIC") classification system, a steam locomotive that has two coupled driving wheel followed by two trailing wheel, with no leading wheel; also called an 0-2-2.

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