• windpower,
• qillpower,
• aillpower,
• sillpower,
• eillpower,
• 3illpower,
• 2illpower,
• wullpower,
• wjllpower,
• wkllpower,
• wollpower,
• w9llpower,
• w8llpower,
• wiklpower,
• wilpower,
• willpwer,
• willpoer,
• willpowre,
• Willowur,
• willpoar

• Wilford,
• wilborn,
• Wilbert,
• Willford,
• wilbourn,
• Wilbourne,
• Wilber.

The adjective form of "willpower" is "willful".

The plural of the "willpower" can be the "willpowers".

The singular of the "willpower" can be the "willpower".