Quick definitions from WordNet (drill)
▸ noun: (military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms
▸ noun: similar to the mandrill but smaller and less brightly colored
▸ noun: a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
▸ noun: systematic training by multiple repetitions
▸ verb: train in the military, e.g., in the use of weapons
▸ verb: undergo military training or do military exercises
▸ verb: learn by repetition ("We drilled French verbs every day")
▸ verb: teach by repetition
▸ verb: make a hole with a pointed power or hand tool ("Don't drill here, there's a gas pipe")
▸ Also see drill
▸ noun: (military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms
▸ noun: similar to the mandrill but smaller and less brightly colored
▸ noun: a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
▸ noun: systematic training by multiple repetitions
▸ verb: train in the military, e.g., in the use of weapons
▸ verb: undergo military training or do military exercises
▸ verb: learn by repetition ("We drilled French verbs every day")
▸ verb: teach by repetition
▸ verb: make a hole with a pointed power or hand tool ("Don't drill here, there's a gas pipe")
▸ Also see drill