driller

noun

1. a tool or apparatus for boring holes in wood, metal, stone, teeth, etc.
2. the sound of drilling or boring
3. ☆ any of various genera of snails, esp. a saltwater species (Urosalpinx cinerea), that bores through the shells of oysters and other shellfish and consumes their flesh
4. 1. military or physical training, esp. of a group, as in marching, the manual of arms, or gymnastic exercises
   2. a single exercise in such training
5. 1. the process of training or teaching by the continued repetition of an exercise
   2. a single exercise in such training or teaching
6. the method or style of drilling
7. Informal the accepted or usual way of doing something

Origin: Du dril < drillen, to bore, ult. < IE base *ter, to rub (esp. with turning motion) > throw

transitive verb

1. to bore (a hole) in (something) with or as with a drill
2. to train in military or physical exercise; specif., to exercise (troops) in close-order drill
3. to teach or train by putting through repeated exercises
4. to instill (ideas, facts, etc.) into someone by repeated exercises
5. ☆ Informal to hit sharply: she drilled the ball past the pitcher; I drilled him with the ball
6. ☆ Slang to penetrate with bullets

Origin: Du drillen

intransitive verb

1. to bore a hole or holes
2. to engage in, or be put through, military, physical, or mental exercises