Drill

a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)

similar to the mandrill but smaller and less brightly colored

systematic training by multiple repetitions

(military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms

make a hole, especially with a pointed power or hand tool

train in the military, e.g., in the use of weapons

learn by repetition

teach by repetition

undergo military training or do military exercises