| toil(noun, performance, work, hard, worry) |
| plodding(noun, adjective, hard, difficult, complex) |
| hard(noun, adjective, work, difficult, complex) |
| oppressive(adjective, hard, difficult, complex) |
| difficult(adjective, hard, complex) |
| grave(adjective, hard, difficult, complex) |
| laborious(adjective, hard, difficult, complex) |
| ponderous(adjective, hard, difficult, complex) |
| stodgy(adjective, hard, difficult, complex) |
| work(noun, activity, work, restraint, effort) |
| grind(noun, performance, work, hard, informal) |
| labor(noun, activity, performance, work, hard) |
| labour(noun, moil) |
| slavery(noun, state, work, hard, restraint) |
| travail(noun, performance, work, hard, worry) |
| moil(noun, labor, work, captivity, labour) |
| sweat(noun, performance, work, hard, informal) |
| hard work(expression, noun, work, labor, function) |
| chore(noun, performance, work, hard, struggle) |
| donkeywork |