Unconstrained by the interference of another; unimpelled by the influence of another; not prompted or persuaded by another; done of his or its own accord; spontaneous; acting of one's self, or of itself; free.

Done by design or intention; intentional; purposed; intended; not accidental; as, if a man kills another by lopping a tree, it is not voluntary manslaughter.

Free; without compulsion; according to the will, consent, or agreement, of a party; without consideration; gratuitous; without valuable consideration.

One who engages in any affair of his own free will; a volunteer.

Of or pertaining to the will; subject to, or regulated by, the will; as, the voluntary motions of an animal, such as the movements of the leg or arm (in distinction from involuntary motions, such as the movements of the heart); the voluntary muscle fibers, which are the agents in voluntary motion.

Of or pertaining to voluntaryism; as, a voluntary church, in distinction from an established or state church.

One who advocates voluntaryism.

An organ piece, often with florid passages, used for a church service.

Proceeding from the will; produced in or by an act of choice.

Voluntary means relating or acting in obedience to the will; not obligatory. W-X

To do something by your own choice; not something that you have to do. Evacuation was voluntary in Britain in the war

A piece played by a musician, often extemporarily, according to his fancy; specifically, an organ solo played before, during, or after divine service.

a piece of music played by organists at the end of a service, which nobody asked for

composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a service or performance