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English definition of “instrument”


noun [C] (also financial instrument)     /ˈɪnstrəmənt/
FINANCE a financial asset that can be bought or sold , such as a bond , share , or other security : Fixed-income instruments include bonds , Treasury bills , and notes . This will still leave sufficient funds in low-risk instruments such as the debt market . Hedging instruments such as futures contracts are priced in dollars .
a tool , especially one without electrical power , used for performing a particular piece of work : surgical/precision/optical instrument The first optical instruments were telescopes .
a piece of equipment used for measuring speed , height , etc. in vehicles , especially aircraft : flight instruments
a way of achieving or causing something: The main instrument of change was the bank credit card .
LAW a legal document : This is a legal instrument and both claims will have to be decided by the English High Court .
→ See also debt instrument, equity instrument, money-market instrument, negotiable instrument, statutory instrument, trust instrument
(Definition of instrument noun from the Cambridge Business English Dictionary © Cambridge University Press)
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