Slavery rhymes with:
lavery, avery, bravery, lavery, savery, savory, unsavory, zavery, avery, bravery, calvary, calvery, convery, delivery, discovery, every, ivery, ivory, lavery, livery, mcgilvery, ovary, overy, reverie, savery, savory, silvery, thievery, unsavory, zavery
Slavery sounds like:
scalfaro, scalper, schlafer, schleifer, schlieper, selover, silber, silvar, silveira, silver, silvera, silveri, silveria, silverio, silverware, silvery, sleeper, sleepwear, slifer, slipper, slippery, sliver, slobber, sloper, sloppier, slover, solver, sulfur, sulphur