The definition of a volunteer is a person who donates his time or efforts for a cause or organization without being paid.(noun)
A person who works in a soup kitchen for free is an example of a volunteer.
To volunteer is defined as to give without being asked and without being paid.(verb)
When you go work in a soup kitchen for free, this is an example of a situation where you volunteer.
See volunteer in Webster's New World College Dictionary
Origin: earlier voluntier < obs. Fr voluntaire < L (miles)voluntarius, voluntary (soldier)
See volunteer in American Heritage Dictionary 4
Origin: Obsolete French voluntaire
Origin: , from Old French, voluntary
Origin: , from Latin voluntārius; see voluntary.
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