■ noun
1》 a person who freely offers to do something.
↘a person who freely enrols for military service rather than being conscripted.
2》 a person who works for an organization without being paid.
3》 a plant that has not been deliberately planted.
4》 Law a person to whom a voluntary conveyance or disposition is made.
■ verb
1》 freely offer to do something.
↘commit (someone) to an undertaking without consulting them.
2》 say or suggest something without being asked.
3》 work for an organization without being paid.
Origin
C16 (asnoun): from Fr. volontaire 'voluntary'.