verb

• (transitive) To create (a hole) by removing material with a drill (tool).
  "Drill a small hole to start the screw in the right direction."
• (intransitive) To practice, especially in (or as in) a military context.
  "They drilled daily to learn the routine exactly."
• (ergative) To cause to drill (practice); to train in military arts.
  "The sergeant was up by 6:00 every morning, drilling his troops."
• (transitive) To repeat an idea frequently in order to encourage someone to remember it.
  "The instructor drilled into us the importance of reading the instructions."

noun

• (uncountable, music) A style of trap music with gritty, violent lyrics, originating on the South Side of Chicago.
  "Though the young women of Chicago’s drill scene can be as rowdy as their male counterparts, they’re also more diverse in subject matter and point to a possible way forward."
• (countable, music) A single performance of drill music.
  "These bells are alarmin’ Point blank and you missed your target They go shooting range and their drills are garbage"

verb

• (transitive) To sow (seeds) by dribbling them along a furrow or in a row.

noun

• (obsolete) A small trickling stream; a rill.
  "Springs through the pleasant meadows pour their drills."