A2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Examples from the Web for a2
Contemporary Examples of a2
A2 seemed the most promising, but A3 could also have potential, so I would carry these two options on to the next level.
Historical Examples of a2
Title with ornament of a basket of flowers, A2 (verso blank).
It is at once evident that a2, for example, corresponds to the point, a1.
Let A1, A2, A3 etc. be moments of α in the order of their occurrences.
The Concept of NatureAlfred North Whitehead
Now let us examine the only known example of a sign for the eighth term (A2, fig. 60).
An Introduction to the Study of the Maya HieroglyphsSylvanus Griswold Morley
The combination of these two elements in one head, as we have seen, indicates the numeral 15, and A2 therefore records 15 katuns.
An Introduction to the Study of the Maya HieroglyphsSylvanus Griswold Morley