| potency(noun, trouble, power, strength, energy) |
| prerequisite(noun, want, need, essential, certainty) |
| press(noun, trouble, force, strain, difficulty) |
| proviso(noun, concern, demand, need, requirement) |
| puissance(noun, power, strength, energy, vigor) |
| pull(noun, trouble, force, strain, difficulty) |
| punch(noun, trouble, power, strength, energy) |
| push(noun, trouble, power, strength, energy) |
| repression(noun, control, force, command, restraint) |
| responsibility(noun, understanding, right, contract, duty) |
| sinew(noun, trouble, power, strength, energy) |
| steam(noun, power, strength, energy, strain) |
| stimulation(noun, motive) |
| stimulus(noun, trouble, drive, power, cause) |
| stipulation(noun, concern, demand, need, requirement) |
| strong arm(noun, expression, trouble, power, strength) |
| subjection(noun, trouble, power, strength, energy) |
| suppression(noun, control, force, command, restraint) |
| thirst(noun, need) |
| threat |