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English definition of “instrument”

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instrument

noun [C]
 
 
/ˈɪnstrəmənt/
TOOL a tool that is used for doing something: scientific instrumentsToolsGardening tools
MUSIC A2 an object that is used for playing music, for example a piano or drumString instrumentsPercussion instrumentsWind instruments
EQUIPMENT a piece of equipment that is used for measuring speed, light, fuel level, etcWeighing, measuring and counting devices
FOR ACHIEVING SOMETHING someone or something that is used for achieving something: The Internet is a very powerful instrument of communication. →  See also wind instrument Ways of achieving things
(Definition of instrument from the Cambridge Learners Dictionary © Cambridge University Press)
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