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. (UK, rail transport) A3 class, a class of steam locomotive used on the London and North Eastern Railway.

See also

• A3 on Wikipedia.Wikipedia
• (A paper sizes): 2A0   A0   A1   A2   A3   A4   A5   A6   A7   A8   A9   A10
• foolscap
• octavo
• quarto