A3

See also: a3 and A-3

English

Etymology

See the Wikipedia article ISO 216, the international standard on paper sizes.

Noun

A3 (usually uncountable, plural A3s)

  1. A standard paper size, defined by ISO 216.
    dimensions: 420 x 297 mm (420.448 x 297.302 mm)
  2. (countable, management) A one-page document, often tabular or graphical, on such paper.
  3. (Britain, rail transport) A3 class, a class of steam locomotive used on the London and North Eastern Railway.

See also
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