Translate instrument | into French | into German | into Italian | into Spanish Definition of instrument
noun
1a tool or implement, especially one for delicate or scientific work:a surgical instrument writing instruments a thing used in pursuing an aim or policy; a means:drama as an instrument of learning a person who is exploited or made use of:he was a mere instrument acting under coercion
2a measuring device used to gauge the level, position, speed, etc., of something, especially a motor vehicle or aircraft.
3 (also musical instrument) an object or device for producing musical sounds:a percussion instrument
4a formal document, especially a legal one:execution involves signature and unconditional delivery of the instrument
verb
[with object] equip (something) with measuring instruments.
