| zeal(noun, action, force, light) |
| ardor(noun, action, force, quality) |
| dynamism(noun, action, power, passion) |
| drive(noun, force, power, light) |
| endurance(noun, power, strength, energy) |
| force(noun, quality, style, power) |
| forcefulness(noun, energy, vigor, enthusiasm) |
| hardihood(noun, energy, vigor, enthusiasm) |
| intensity(noun, force, style, power) |
| juice(noun, power, strength, energy) |
| might(noun, force, style, power) |
| moxie(noun, power, strength, energy) |
| punch(noun, force, power, light) |
| stamina(noun, energy, vigor, enthusiasm) |
| strength(noun, force, style, power) |
| birr(noun, force, style, power) |
| effectiveness(noun, energy, vigor, enthusiasm) |
| exertion(noun, energy, vigor, enthusiasm) |
| fortitude(noun, energy, vigor, enthusiasm) |
| initiative(noun, energy, vigor, enthusiasm) |