Below is the definition for the word you requested, useful for Scrabble and other word games. To find more definitions please use the dictionary page.
of your own free will or design; done by choice; not forced or compelled; "man is a voluntary agent"; "participation was voluntary"; "voluntary manslaughter"; "voluntary generosity in times of disaster"; "voluntary social workers"; "a voluntary confession"
composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a religious service or musical performance
controlled by individual volition; "voluntary motions"; "voluntary muscles"
(military) a person who freely enlists for service