Trader's rhymes with:
traders, traders', graders, raider's, raiders, raiders', traders, traders', blockaders, crusaders, evaders, graders, invaders, nader's, raider's, raiders, raiders', traders, traders', waders
Trader's sounds like:
tartars, territories, territory's, tortorice, tortorici, torturers, tortures, torturous, traders, traders', traitorous, traitors, treaters