Meaning of INSTRUMENT in English

INSTRUMENT

I. ˈin(t)-strə-mənt 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 voice

2.

a. : a means whereby something is achieved, performed, or furthered

b. : one used by another as a means or aid : dupe , tool

3. : implement ; especially : one designed for precision work

4. : 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

II. -ˌment transitive verb

Date: 1752

1. : to address a legal instrument to

2. : to score for musical performance : orchestrate

3. : to equip with instruments especially for measuring and recording data

an instrument ed spacecraft

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.