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instrument

in·stru·ment [ ínstrəmənt ]


noun  (plural in·stru·ments)
Definition:
 
1. tool: a tool or mechanical device, especially one used for precision work in science, medicine, or technology

2. music object that produces music: an object used to produce music, e.g. a flute, guitar, or drum

3. measurements measuring device: a device that measures or controls something, e.g. a speedometer or voltmeter

4. means of doing something: somebody or something used as a means of achieving a desired result or accomplishing a particular purpose
They view standardized testing as an instrument for improving the schools.

5. object used for purpose: an object that has been or could be used for a purpose
hit by a blunt instrument

6. law document: a legal document ( formal )



transitive verb  (past and past participle in·stru·ment·ed, present participle in·stru·ment·ing, 3rd person present singular in·stru·ments)
Definition:
 
1.  [ ínstrə mènt ] music arrange music: to write or arrange a piece of music for performance on musical instruments

2. measurements supply with measuring devices: to equip something with instruments for measurement or control

[13th century. Via French< Latin instrumentum< instruere "prepare" (see instruct)]
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