drill - Dictionary definition and pronunciation - Yahoo! Education
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drill2  audio  (drl) KEY 

NOUN:
  1. A shallow trench or furrow in which seeds are planted.
  2. A row of planted seeds.
  3. A machine or implement for planting seeds in holes or furrows.
TRANSITIVE VERB:
drilled, drill·ing, drills
  1. To sow (seeds) in rows.
  2. To plant (a field) in drills.
ETYMOLOGY:
Perhaps from drill, rill, from Middle English drille, sip


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