I must be about my Father's business.
Luke ii. 49.
6. Before a verbal noun or an infinitive: On the point or verge of; going; in act of.
Paul was now aboutto open his mouth.
Acts xviii. 14.
7. Concerning; with regard to; on account of; touching. "To treat about thy ransom." Milton.
She must have her way about Sarah.
Trollope.
A*bout", adv. 1. On all sides; around.
'Tis time to look about.
Shak.
2. In circuit; circularly; by a circuitous way; around the outside; as, a mile about, and a third of a mile across.