1.NounVoluntary choice; (the power of) unforced, uncoerced choice.
"(insane/worst/best/amazing) use of free will; He did not say it of his own free will, but because his captors coerced him.; They bound my limbs, depriving me of my free will."
2.NounThe ability to choose one's actions and make choices that are not predetermined by predestination, fate, etc.
"Some people deny that humans have free will, and argue that every thought and action is preordained by God.; You can bind my limbs, but you can never deprive me of my free will."