Definitions of instrument

  1. To perform upon an instrument; to prepare for an instrument; as, a sonata instrumented for orchestra.
  2. address a legal document to
  3. write an instrumental score for
  4. the means whereby some act is accomplished; " my greed was the instrument of my destruction"; " science has given us new tools to fight disease"
  5. a device that requires skill for proper use
  6. any of various devices or contrivances that can be used to produce musical tones or sounds
  7. the semantic role of the entity ( usually inanimate) that the agent uses to perform an action or start a process
  8. That by means of which any work is performed, or result is effected; a tool; a utensil; an implement; as, the instruments of a mechanic; astronomical instruments.
  9. A contrivance or implement, by which musical sounds are produced; as, a musical instrument.
  10. A writing, as the means of giving formal expression to some act; a writing expressive of some act, contract, process, as a deed, contract, writ, etc.
  11. One who, or that which, is made a means, or is caused to serve a purpose; a medium, means, or agent.
  12. That by which anything is accomplished; a tool; a mechanical contrivance for producing musical sounds; agent; a writing containing the terms of a contract; as, a deed.
  13. A tool or utensil: a machine producing musical sounds: a writing containing a contract: one who or that which is made a means.
  14. A tool; contrivance for producing musical tones; contract in writing.
  15. A tool; a mechanism for scientific or musical purposes.
  16. A legal writing.
  17. That by which work is performed or anything effected; a tool; an agent or means employed as a tool for a purpose; a mechanical contrivance for yielding harmonious sound; a writing containing the terms of a contract, as a deed of conveyance.
  18. A tool; a machine; a machine for the production of musical sounds; that by which something is prepared, produced, or done; a writing containing the terms of a contract; an agent, often in an ill sense.