| chief motive(expression, force, reason, motive) |
| chief reason(expression, force, reason, motive) |
| commander(noun, person, force, leader, leadership) |
| doer(noun, person, force, power, energy) |
| dynamo(noun, force, reason, motive) |
| forefront(noun, person, force, leader, leadership) |
| head(noun, person, force, leader, leadership) |
| heart(noun, capital, core, centre) |
| hidden agenda(noun, expression, force, power, reason) |
| hidden motive(expression, force, power, reason, motivation) |
| lead(noun, person, force, leader, leadership) |
| leader(noun, person, force, leadership) |
| leading light(expression, person, force, leader, leadership) |
| motive(noun, force, drive, power, reason) |
| powerhouse(noun, person, force, power, energy) |
| reason(noun, force, drive, power, inspiration) |
| spearhead(noun, person, force, leader, leadership) |
| thrust(noun, force, power, motivation, motive) |
| drive(noun, force, inspiration, thrust, incentive) |
| motivation(noun, force, drive, power, reason) |