| fierceness(noun, force, attack, drive, power) |
| fighting(force, attack, power, disorder, intensity) |
| fixing(noun, hold, grasp, restraint, shake) |
| flap(force, attack, power, disorder, intensity) |
| flower power |
| force majeure |
| foul play(expression, force, attack, power, disorder) |
| frenzy(force, attack, power, disorder, intensity) |
| full blast |
| full force |
| full head of steam(noun, expression, idiom, trouble, power) |
| fundamental(need, essential, requirement, prerequisite, essentiality) |
| fury(noun, trouble, attack, power, disorder) |
| fuss(force, attack, power, disorder, intensity) |
| godsend(need, essential, requirement, prerequisite, essentiality) |
| grapnel(noun, hold, grasp, restraint, shake) |
| grapple(noun, hold, grasp, restraint, shake) |
| grasp(noun, hold, restraint, shake, grip) |
| gripe(noun, hold, grasp, restraint, shake) |
| handclasp(noun, hold, grasp, restraint, shake) |