10 letters · 12 points in Scrabble
noun a device that requires skill for proper use
noun the means whereby some act is accomplished
noun a person used by another to gain an end
originFrom Middle English instrument, from Old French instrument, from Latin īnstrūmentum (“an implement, tool”), From īnstruō (“build, construct; arrange”) + -mentum.
Etymology from Wiktionary, CC BY-SA 3.0