| bondage(noun, state, work, restraint, labor) |
| slavery(noun, state, work, restraint, freedom) |
| thrall(noun, state, work, restraint, labor) |
| serfdom(noun, state, work, restraint, labor) |
| servitude(noun, state, work, restraint, labor) |
| captivity(noun, work, restraint, labor, grind) |
| thraldom(noun, isolation, custody, prison, confinement) |
| enslavement(noun, state, over, subjection, slavery) |
| subjugation(noun, subjection, slavery) |
| restraint(noun, work, labor, grind, labour) |
| servility(noun, state, work, restraint, labor) |
| yoke(noun, state, work, restraint, labor) |
| imprisonment(noun, custody, detention, prison, confinement) |
| vassalage(noun, subjection, slavery) |
| enthrallment(noun, subjection, slavery) |
| feudalism(noun, subjection, slavery) |
| helotry(noun, state, work, restraint, labor) |
| peonage(noun, work, restraint, labor, grind) |
| subjection(noun, work, restraint, labor, grind) |
| villeinage(noun, state, over, slavery) |