1. instrument - Noun
2. instrument - Verb
That by means of which any work is performed, or result is effected; a tool; a utensil; an implement; as, the instruments of a mechanic; astronomical instruments.
A contrivance or implement, by which musical sounds are produced; as, a musical instrument.
A writing, as the means of giving formal expression to some act; a writing expressive of some act, contract, process, as a deed, contract, writ, etc.
One who, or that which, is made a means, or is caused to serve a purpose; a medium, means, or agent.
To perform upon an instrument; to prepare for an instrument; as, a sonata instrumented for orchestra.
Source: Webster's dictionaryBlessed the one who loves truth continually and has not lent his mouth as an instrument of impiety by lying, for he fears the commandment about idle speech. Ephrem the Syrian
Barometer, n.: An ingenious instrument which indicates what kind of weather we are having. Ambrose Bierce
Desire is creation, is the magical element in that process. If there were an instrument by which to measure desire, one could foretell achievement. Willa Cather
Kitten's are a child's instrument for happiness. Cuban Proverb
Man is the instrument of illness. Japanese Proverb
Let him play the instrument who knows how. Spanish Proverb