Emily Dickinson Lexicon

DRILL, n.

1. A pointed instrument, used for boring holes, particularly in metals and other hard substances. – Moxon.
2. An ape or baboon. – Locke.
3. The act of training soldiers to their duty.
4. A small stream; now called a rill. – Sandys. [Drill is formed on the root of rill, G. rille, a channel.]
5. In husbandry, a row of grain, sowed by a drill-plow.