voluntary

Definitions of voluntary in various dictionaries:

noun - (military) a person who freely enlists for service

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

adj - of your own free will or design

adj - controlled by individual volition

Arising from or acting on one’s own free will.

Acting, serving, or done willingly and without constraint or expectation of reward: a voluntary hostage; voluntary community work.

Normally controlled by or subject to individual volition: Respiration is voluntary.

Capable of making choices; having the faculty of will.

Supported by contributions or charitable donations rather than by government appropriations: voluntary hospitals.

Law.

Without legal obligation or consideration: a voluntary conveyance of property.

Done deliberately; intentional: voluntary manslaughter.

Music.

A short piece of music, often improvised on a solo instrument, played as an introduction to a larger work.

A piece for solo organ, often improvised, played before, during, or after a religious service.

These adj ectives mean being or resulting from one’s own free will.