This is the 4002nd most frequent French word.
bénévole
Volunteer.
The word 'bénévole' is used here as a noun to indicate someone who performs volunteer work.
Je suis bénévole dans une bibliothèque.
I am a volunteer at a library.
The word 'bénévole' is used as an adjective describing an action done voluntarily without compensation.
Son action était complètement bénévole.
His action was completely voluntary.
The word 'bénévole' is used as a noun, reflecting the subject's role in aiding others voluntarily.