definition of
[drill]

[1] #1 drill v. [bore] make a hole, especially with a pointed power or hand tool; "don't drill here, there's a gas pipe"; "drill a hole into the wall"; "drill for oil"; "carpenter bees are boring holes into the wall". wn

[2] #2 drill v. train in the military, e.g., in the use of weapons. wn

[3] #3 drill v. [exercise, practice, practise] learn by repetition; "We drilled French verbs every day"; "Pianists practice scales". wn

[4] #4 drill n. a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows). wn

[5] #5 drill n. [Mandrillus leucophaeus] similar to the mandrill but smaller and less brightly colored. wn