instrument

• Noun

  1. A device used to produce music.
  2. A means or agency for achieving an effect.
  3. A measuring or displaying device.
  4. A tool, implement used for manipulation or measurement.
  5. A tool, implement used for manipulation or measurement.
  6. A legal document, such as a contract, deed, trust, mortgage, power, indenture, or will.
  7. A person used as a mere tool for achieving a goal.

• Verb