| encouragement(noun, spur, incentive, provocation, inducement) |
| encourager(noun, verb, enticement, temptation, bonus) |
| arouser(noun, incentive, motive, instigator, activator) |
| energizer(noun, incentive, motive, instigator, activator) |
| impetus(noun, spur, incentive, provocation, motive) |
| impulse(noun, spur, incentive, provocation, motive) |
| incitation(noun, cause, push, energy, spirit) |
| inciter(noun, incentive, motive, instigator, activator) |
| inspirer(noun, incentive, motive, instigator, activator) |
| spur(noun, incentive, provocation, motive, inducement) |
| temptation(noun, enticement, bonus, causer, effectuation) |
| exciter(noun, incentive, motive, instigator, activator) |
| stimulation(noun, spur, incentive, provocation, inducement) |
| catalyst(noun, spur, incentive, provocation, inducement) |
| compulsion(noun, cause, incentive, motive, instigator) |
| determinant(noun, cause, incentive, motive, instigator) |
| enforcement(noun, cause, incentive, motive, instigator) |
| fillip(noun, incentive, motive, instigator, activator) |
| inducing(noun, incentive, motive, instigator, activator) |
| mainspring(noun, cause, incentive, motive, instigator) |