| responsibility(noun, activity, business, action, order) |
| duty(noun, business, action, order, place) |
| gratitude(noun, appreciation, recognition, thanks, indebtedness) |
| liability(noun, charge, concern, weakness, care) |
| trust(noun, place, work, charge, concern) |
| charge(noun, action, order, place, work) |
| contract(noun, activity, work, charge, concern) |
| burden(noun, action, work, charge, concern) |
| promise(noun, agreement, arrangement, responsibility, record) |
| bond(noun, charge, concern, agreement, connection) |
| must(noun, verb, work, charge, right) |
| requirement(noun, order, charge, drive, power) |
| agreement(noun, condition, arrangement, responsibility, procedure) |
| onus(noun, work, charge, concern, weakness) |
| commitment(noun, activity, work, charge, right) |
| compulsion(noun, force, power, strength, energy) |
| debt(noun, charge, weakness, burden, condition) |
| pledge(noun, charge, concern, agreement, burden) |
| stipulation(noun, agreement, condition, arrangement, contract) |
| covenant(noun, agreement, arrangement, procedure, contract) |