| encouragement(noun, charge, drive, cause, reason) |
| inducement(noun, charge, drive, cause, desire) |
| prod(noun, charge, cause, push, boost) |
| stimulation(noun, charge, cause, start, reason) |
| catalyst(noun, activity, force, charge, drive) |
| enthusiasm(noun, drive, inspiration, incentive) |
| inspiration(noun, drive, desire, reason, interest) |
| instigation(noun, charge, drive, cause, desire) |
| velocity(noun, trouble, force, power, strength) |
| boost(noun, break, charge, cause, push) |
| enabler |
| incitation(noun, force, charge, drive, cause) |
| compulsion(noun, trouble, drive, power, passion) |
| drift |
| fillip(noun, charge, cause, boost, spur) |
| provocation(noun, charge, drive, cause, desire) |
| shock(noun, push, pressure, thrust, stimulus) |
| surge(noun, push, pressure, thrust, stimulus) |
| enterprise(noun, drive, push, energy, vigor) |
| get-up-and-go(noun, drive, push, energy, vigor) |