Noun

(en noun)

A device used to produce music.

The violinist was a master of her instrument .

A means or agency for achieving an effect.

* {{quote-book, year=1905, author=

, title= , chapter=1 citation , passage=“There the cause of death was soon ascertained?; the victim of this daring outrage had been stabbed to death from ear to ear with a long, sharp instrument , in shape like an antique stiletto, which […] was subsequently found under the cushions of the hansom. […]”}}

A measuring or displaying device.

The instrument detected an increase in radioactivity.

A tool, implement used for manipulation or measurement.

The dentist set down his tray of instruments'''.'' The scientist recorded the temperature with a thermometer but wished he had a more accurate ' instrument ."

(legal) A legal document, such as a contract, deed, trust, mortgage, power, indenture, or will.

A bond indenture is the instrument that gives a bond its value.

Negotiable instruments are the foundation of the debt markets.

(figuratively) A person used as a mere tool for achieving a goal.

* Shakespeare

Or useful serving man and instrument , / To any sovereign state.

* Dryden

The bold are but the instruments of the wise.

Noun

(en noun)

A machine or device that converts any form of energy into mechanical energy, or imparts motion.

(lb) A motor car, or automobile.

*

*:It was flood-tide along Fifth Avenue; motor , brougham, and victoria swept by on the glittering current; pretty women glanced out from limousine and tonneau; young men of his own type, silk-hatted, frock-coated, the crooks of their walking sticks tucked up under their left arms, passed on the Park side.

(lb) A source of power for something, an inspiration, a driving force.