(music) A musical instrument that produces sound by means of vibrating strings.

(music) A musical instrument in which sound is produced by blowing against an edge or by vibrating a thin piece of wood or metal known as the reed, and in which the pitch is governed by the resonant frequencies of an enclosed air column.

(law, banking, business) a legal document, as a cheque or bill of exchange, that is freely negotiable.

(music) Any of very many musical instruments in which taut strings are plucked, bowed or struck in order to produce a sound

(finance) Any form of funding medium, mostly those used for borrowing in money markets, including cash instruments and derivative instruments.

plural of financial instrument

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

(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

(finance) A financial instrument that is marketable at close to par under almost all circumstances.