From Longman Dictionary of Contemporary Englishfree willˌfree ˈwill noun [uncountable] 1 → do something of your own free will2 RPFUTUREthe ability to make your own decisions about what to do, rather than being controlled by God or Fate
Examples from the Corpus
free will• The whole canonical process recognizes the primacy of conscience and free will.• Humans could no longer be allowed any such privileged, mystical feature as free will to distinguish them.• The replacement of free will with scientific determinism was consequently the crucial starting point for the new positivist criminology.• I came back of my own free will on Friday, and went to the game yesterday.• I say this of my own free will. 