| fervor(noun, force, power, passion, strength) |
| fierceness(noun, force, power, passion, strength) |
| fire(noun, force, power, passion, strength) |
| force(noun, power, passion, strength, energy) |
| forcefulness(noun, force, power, passion, strength) |
| fullness |
| fury(noun, force, power, passion, strength) |
| hardness |
| high pitch(noun, expression, force, power, passion) |
| hollowness(noun, lowness) |
| impenetrability |
| intenseness(noun, force, power, passion, strength) |
| intricacy |
| keenness(noun, force, power, passion, strength) |
| magnitude(noun, force, power, passion, strength) |
| measure(noun, extent, bottom, resonance, sonority) |
| mellowness |
| might(noun, force, power, passion, strength) |
| nervousness(noun, force, power, passion, strength) |
| potency(noun, force, power, passion, strength) |