| essential(noun, right, want, need, certainty) |
| gratefulness(noun, appreciation, recognition, thanks, gratitude) |
| insurance(noun, promise, outlay, expenditure, disbursement) |
| mandate(noun, order, charge, rule, command) |
| necessitation |
| obligatory(adjective, duty) |
| pact(noun, agreement, arrangement, procedure, contract) |
| project(noun, business, action, work, concern) |
| province(noun, business, action, place, work) |
| provision(noun, condition, arrangement, requirement, stipulation) |
| score(noun, damage, balance, capital, credit) |
| sense of obligation(noun, expression, idiom, appreciation, recognition) |
| service(noun, place, work, charge, burden) |
| specification(noun, condition, arrangement, requirement, provision) |
| subscription(charge, fees) |
| venture(noun, action, work, care, thing) |
| warranty(noun, promise) |
| word(noun, order, charge, rule, agreement) |
| amount due(expression, charge, withdrawal, entry, subtraction) |
| appreciativeness(noun, appreciation, recognition, thanks, gratitude) |