Drill

dril, v. [drilled (drild), drilling.] To pierce or bore with a drill; to train in the military art, instruct in the rudiments of any branch of knowledge. — v. To muster for military or other exercise. — n. A pointed instrument for boring holes in metals and other hard substances: see Bit, under Bite; a drill-pre ; training of soldiers in the military art; instruction and exercise in any bus* ne . [D. drillen, to bore, also to train to — arms thrill.] Drilling, n. Act of piercing with a drill. Drill'-pre , n. A machine-tool for boring — in metal sergeant, -sar'jent, n. A noncommi ioned officer who drills soldiers.