voluntary
Translation
voluntary, optional, unpaid
Examples
Participation in the survey is voluntary.
Participation in the survey is voluntary.
She does voluntary work at the hospital.
She does voluntary work at the hospital.
Breathing is not a voluntary action.
Breathing is not a voluntary action.
Grammar Patterns
voluntary ((noun)) done by choice He made a voluntary contribution to the charity.
((sth.)) is voluntary (sth.) is optional Attendance at the meeting is completely voluntary.
Similar Words
Synonyms: optional, discretionary, unforced; Antonyms: compulsory, mandatory, involuntary
Etymology
From Latin 'voluntarius' (of one's free will), from 'voluntas' (will, choice).
Memory Tips
Connects to 'volunteer' – someone who does something by their own choice or free will.