Meaning : (military) a person who freely enlists for service.
Synonyms : military volunteer, volunteer
Meaning : Composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a religious service or musical performance.
Meaning : Of your own free will or design. Done by choice. Not forced or compelled.
Example :
Man is a voluntary agent.
Participation was voluntary.
Voluntary manslaughter.
Voluntary generosity in times of disaster.
Voluntary social workers.
A voluntary confession.
Not subject to the control of the will.
Involuntary manslaughter.Meaning : Controlled by individual volition.
Example :
Voluntary motions.
Voluntary muscles.
Controlled by the autonomic nervous system. Without conscious control.
Involuntary muscles.