Akademik

voluntary
1. adjective
a) Done, given, or acting of ones own free will.
b) Working or done without payment.
Syn: discretionary, optional, willful, volitional
Ant: compulsory, obligatory, involuntary
See Also: volition, voluntarism, voluntarist, volunteer, will
2. noun
a) A short piece of music, often having improvisation, played on a solo instrument
b) A volunteer

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