| pith(noun, health, force, body, power) |
| authority(noun, control, force, power, strength) |
| backbone(noun, health, support, force, body) |
| bite(noun, power, strength, energy, vigor) |
| body(noun, health, force, power, strength) |
| brace(noun, verb, support, increase, establish) |
| brute force(noun, expression, health, force, body) |
| cogency(noun, power, strength, energy, vigor) |
| compulsion(noun, trouble, power, strength, energy) |
| connective tissue(expression, idiom) |
| duress(noun, trouble, power, strength, energy) |
| effectiveness(noun, force, power, strength, energy) |
| enhance(verb, support, increase, establish, extend) |
| forcefulness(noun, control, force, power, strength) |
| fortify(verb, support, increase, establish, extend) |
| guts(noun, power, strength, energy, vigor) |
| hamstring(noun, cord) |
| impressiveness(noun, power, strength, energy, vigor) |
| mightiness |
| moxie(force, power, strength, ability, potency) |