1. (noun)drill a tool with a sharppoint and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
2. (noun)drill, Mandrillus leucophaeus similar to the mandrill but smaller and less brightly colored
3. (noun)exercise, practice, drill, practice session, recitation systematic training by multiple repetitions "practice makes perfect"
4. (noun)drill (military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms
5. (verb)bore, drill 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"
6. (verb)drill train in the military, e.g., in the use of weapons
7. (verb)drill, exercise, practice, practise learn by repetition "We drilled French verbs every day"; "Pianists practice scales"