1. past tense and past participle of drill; made a hole using a drill or similar tool
2. past tense and past participle of drill; trained through repetitive practice
3. past tense and past participle of drill; questioned intensively
Usage: informal

Examples

• The carpenter drilled holes in the wooden board.
• We drilled for oil in the desert for months.
• The students were drilled on multiplication tables every day.
• The soldiers drilled their marching formation until it was perfect.
• The detective drilled the suspect about his whereabouts.
• She drilled the safety procedures into her team’s minds.
• The dentist drilled the cavity and filled it with composite material.