(grammar) A noun case used to express means or agency—and is generally indicated in English by by or with with the objective. Languages that use the instrumental case include Armenian, Serbo-Croatian, Czech, Dyirbal, Georgian, Latvian, Slovene, Polish, Quechua, Russian, Assamese, Turkish and Sanskrit. Extinct languages that used the instrumental case include Old English, Old Saxon and Old High German.

A remixed song which lacks the vocal tracks.

A coin or other item of currency.

Any musical instrument whose tone is produced by vibration of the lips as the player blows into a mouthpiece (or tubular resonator).

(music) An instrument in which the sound is produced by striking, scraping or shaking an object.

(finance) A security whose value is derived from one or more other, more fundamental, assets.

plural of financial instrument

(philosophy) A specific form of rationality focusing on the most efficient or cost-effective means to achieve a specific end, but not in itself reflecting on the value of that end.

plural of wind instrument

plural of transit instrument