Main Entry:: ¹in·stru·ment
Pronunciation:: \ˈin(t)-strə-mənt\
Function:: noun
Etymology:: Middle English, from Anglo-French, from Latin instrumentum, from instruere to arrange, instruct
Date:: 14th century

1: a device used to produce music ; also : a singing voice2 a: a means whereby something is achieved, performed, or furthered b: one used by another as a means or aid : dupe , tool3: implement ; especially : one designed for precision work4: a formal legal document (as a deed, bond, or agreement)5 a: a measuring device for determining the present value of a quantity under observation b: an electrical or mechanical device used in navigating an airplane ; especially : such a device used as the sole means of navigating

synonyms see implement

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