instrument
//ˈɪnstrəmənt//
Noun
A tool or device used for a particular purpose, especially for delicate or scientific work.
The surgeon used a delicate instrument to perform the operation.
A device designed or used for producing musical sounds.
She plays several instruments, including the piano and violin.
A means by which something is achieved, performed, or furthered; a medium or agency.
Education is an instrument for social change.
A formal legal document, such as a contract, deed, or will.
The lawyer prepared the legal instrument for the property transfer.
Verb
To equip with instruments, especially for scientific or technical purposes.
The laboratory was fully instrumented for advanced research.
To arrange or compose music for instruments.
The composer instrumented the piece for a full orchestra.