a1

English dictionary entry

Meanings

adj
  1. first rate or excellent
  2. in first class condition
adj
  1. In good health.
  2. In excellent or top condition.
  3. First-class. (Compare A 2 and A 3, which are inferior grades.)
noun
  1. Under the International Union of Railways (French: Union internationale des chemins de fer, 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.

Word forms

a1 A-1 A 1 A1s

Etymology

The symbol used for a first-class vessel in Lloyd's Register of Shipping.

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