Dictionary definition · voluntary
noun
- (military) a person who freely enlists for service
- composition (often improvised) for a solo instrument (especially solo organ) and not a regular part of a religious service or musical performance
adjective
- of your own free will or design; done by choice; not forced or compelled"man is a voluntary agent"
- controlled by individual volition"voluntary motions"
Similar words
Source: Open English WordNet (CC BY 4.0).