English

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

• A3 on Wikipedia.Wikipedia

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

Mandarin

Romanization

a3 (Zhuyin ㄚˇ)

1. Alternative spelling of ǎ