Instrument

Instrument, and partly analogous to the collective term instruments is:

General, technical and figuratively, for a tool
For musical instrument, a device for producing sounds
For indicating measuring instruments, see display (technology)
For measuring equipment for general metrology, see meter
For measuring instruments in astronomy, see Astronomical Instrument
For measuring instruments in physics, see Physical instruments
For measuring equipment for navigation, see nautical # nautical instruments
For measuring equipment in geodesy, see geodesy # Measuring instruments, devices and equipment
For representational tool or apparatus in medicine, see Medical Instruments
For material resources in mathematics and mathematical applications, see Mathematical Instruments
Instrument variable, a tool to estimate the statistics
For the Technical Museum in instruments Nothweiler see instruments ( Museum )
In empirical social research and psychology, for example, a questionnaire or a test, see Instrument ( Social Research)
For an agent in the policy to enforce something, see a political tool