1 a tool or device used for a particular task, especially for delicate or scientific work:
surgical / optical / precision instruments * instruments of torture
2 = MUSICALINSTRUMENT:
Is he learning an instrument?
3 a device used for measuring speed, distance, temperature, etc. in a vehicle or on a piece of machinery:
the flight instruments * the instrument panel
4 ~ of / for sth (formal) something that is used by sb in order to achieve sth; a person or thing that makes sth happen:
The law is not the best instrument for dealing with family matters. * an instrument of change / oppression
5 ~ of sb/sth (formal) a person who is used and controlled by sb/sth that is more powerful:
an instrument of God / fate
