| grit(noun, strength, energy, spirit, ability) |
| guts(noun, drive, power, strength, energy) |
| backbone(noun, strength, energy, spirit, ability) |
| spunk(noun, strength, spirit, ability, resolve) |
| force(noun, power, strength, energy, spirit) |
| fortitude(noun, strength, energy, spirit, ability) |
| gutsiness(noun, strength, energy, ability, resolve) |
| heart(noun, strength, energy, spirit, ability) |
| moxie(noun, strength, energy, spirit, ability) |
| nerve(noun, spirit, resolve, determination, courage) |
| pluck(noun, strength, spirit, ability, resolve) |
| stamina(noun, strength, energy, ability, vigor) |
| strength(noun, power, strength, energy, ability) |
| chutzpah(noun, strength, spirit, resolve, determination) |
| endurance(noun, power, strength, energy, spirit) |
| energy(noun, drive, power, strength, spirit) |
| patience(noun, strength, ability, restraint, resolution) |
| spirit(noun, resolve, determination, courage, nerve) |
| staying power(noun, expression, strength, energy, vigor) |
| vigor(noun, power, strength, energy, spirit) |