| reason(noun, drive, desire, interest, enthusiasm) |
| trigger(noun, cause, that) |
| action(noun, feeling, drive, pleasure, passion) |
| activity(noun, feeling, pleasure, passion, rage) |
| actuation(drive, start, desire, reason, interest) |
| advocacy |
| agency(noun, reason, element, matter, source) |
| aim(noun, reason, element, matter, source) |
| angle(drive, desire, reason, interest, inspiration) |
| animation(noun, feeling, pleasure, passion, rage) |
| attractiveness |
| author(noun, reason, element, matter, source) |
| bang(noun, charge, cause, boost, spur) |
| beginning(noun, start, reason, element, matter) |
| boost(noun, charge, cause, spur, encouragement) |
| causation(noun, reason, element, matter, source) |
| charge(noun, cause, boost, spur, encouragement) |
| consideration(noun, reason, element, matter, spur) |
| creator(noun, reason, element, matter, source) |
| determinant(noun, reason, element, matter, spur) |