#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 drill v. train in the military, e.g., in the use of weapons. wn
#3 drill v. [exercise, practice, practise] learn by repetition; "We drilled French verbs every day"; "Pianists practice scales". wn
#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 drill n. [Mandrillus leucophaeus] similar to the mandrill but smaller and less brightly colored. wn
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