Definition

• v. t. - To pierce or bore with a drill, or a with a drill; to perforate; as, to drill a hole into a rock; to drill a piece of metal.
• v. t. - To train in the military art; to exercise diligently, as soldiers, in military evolutions and exercises; hence, to instruct thoroughly in the rudiments of any art or branch of knowledge; to discipline.
• v. i. - To practice an exercise or exercises; to train one's self.
• n. - An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill press.
• n. - The act or exercise of training soldiers in the military art, as in the manual of arms, in the execution of evolutions, and the like; hence, diligent and strict instruction and exercise in the rudiments and methods of any business; a kind or method of military exercises; as, infantry drill; battalion drill; artillery drill.
• n. - Any exercise, physical or mental, enforced with regularity and by constant repetition; as, a severe drill in Latin grammar.