Meaning of INSTRUMENT in English

INSTRUMENT

■ noun

1》 a tool or implement, especially for precision work.

2》 a measuring device, especially in a vehicle or aircraft.

3》 (also musical ~ ) a device for producing musical sounds.

4》 a means of pursuing an aim.

5》 a person who is made use of.

6》 a formal or legal document.

■ verb equip with measuring ~s.

Origin

ME: from OFr., or from L. ~um 'equipment, implement', from instruere 'construct, equip'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.