| discount |
| engagement(condition, requirement, proviso) |
| exception(noun, condition, essential, requirement, qualification) |
| exemption |
| fee(charge, agreement, conditions) |
| glitch(control, check, limit, condition, restraint) |
| handicap(control, check, limit, condition, restraint) |
| hang-up(control, check, limit, condition, restraint) |
| hangup(control, curb, limit) |
| items(charge, agreement, conditions) |
| lock(control, check, limit, condition, restraint) |
| nitty-gritty(charge, agreement, conditions) |
| no-no(control, check, limit, condition, restraint) |
| payment(charge, agreement, conditions) |
| points(charge, agreement, conditions) |
| premise(charge, agreement, conditions) |
| premises(charge, agreement, conditions) |
| price(charge, agreement, conditions) |
| provisos(charge, agreement, conditions) |
| qua |