use, utilize

muscle / tendon / have an aptitude / vein / (usually in place names) road

(literary) they (about women or girls)

reuse

user; consumer / employer

employee / servant

something that has gone unused

muscle, tendon / vein, artery / reason, logic / plot, storyline / counter for long thin things; counter for roads or blocks when giving directions / lineage, descent

Counter for long, thin things.

an unused item