"instrument" - key terms from Wikipedia

bass instrument
bass instrument amplification
bowed instrument
brass instrument
ear piercing instrument
general instrument
instrument
instrument amplifier
instrument amplifiers
instrument approach
instrument approaches
instrument cluster
instrument controllers
instrument flight
instrument flight rules
instrument landing system
instrument meteorological conditions
instrument of accession
instrument of government
instrument of ratification
instrument of surrender
instrument panel
instrument peripherals
instrument rating
instrument unit
japanese instrument of surrender
kbp instrument design bureau
keyboard instrument
lighting instrument
main instrument
measuring instrument
musical instrument
musical instrument digital interface
negotiable instrument
percussion instrument
price of the underlying instrument
research institute of instrument design
revised instrument panel
scientific research institute of instrument
solo instrument
stage lighting instrument
statutory instrument
string instrument
stringed instrument
time of the instrument
trust instrument
underlying instrument
use of the instrument
wind instrument
woodwind instrument