- a standard paper size (half A4), 148 × 210 mm
- (as adjective)A5 notepaper
How to use A5 in a sentence
For the planets, in virtue of Kepler's law, the effect varies then inversely as √a5; it is therefore insensible, save for Mercury.
This is generated by the decay of animal and vegetable substances, and is to a5 considerable degree soluble in water.Cave Regions of the Ozarks and Black Hills|Luella Agnes Owen
The student will note that 12, not 13, tuns are recorded in A5.An Introduction to the Study of the Maya Hieroglyphs|Sylvanus Griswold Morley
Then he found fault with his new seat, because it was exposed to a5 draught which blew the cinders into his eyes.Manasseh|Maurus Jokai
In Cowley, now and then, a stanza is found with a preceding frons (on the scheme a a5 b c b c4).A History of English Versification|Jakob Schipper