(n.) The act of exploiting or utilizing.

act acting action active use activism activities activity affair affairs appliance application appointment assignment attendance bag behavior berth bespeaking billet booking briefing business calling commerce concern concernment consumption craft dirty work disposition doing donkeywork drudgery employ engagement engaging enlistment enrollment enterprise exercise exercising exertion exploitation fag fatigue function functioning gig good use grind handiwork handling handwork hard usage hard use hire hiring ill use implementation incumbency industry interest job labor lick lick of work line livelihood lookout management manipulation manual labor matter metier ministration ministry mission misuse moil moonlighting movements occupation office opening operation operations peonage place play position post practice praxis preengagement profession purpose pursuit racket rat race recruitment reservation retaining retainment rough usage scut work second job serfdom service servitium servitorship servitude situation skill slavery spadework station stroke stroke of work sweat swing taking on task tendance tenure thing tiresome work toil trade travail treadmill undertaking usage use using using up utilization vacancy vocation work working workings wrong use