12 entries under voluntary topic. ×

11
contributed(verb, adjective, given, gave)
2
unpaid(adjective, free, honorary)
1
freewilled
1
gratuitous(free, courtesy, gratis, honorary)
1
honorary(free, courtesy, gratis)
1
unindemnified
1
unrewarded
1
unsalaried(adjective, unpaid, honorary)
1
volunteer
0
amateur
0
due
0
free(courtesy, gratis, honorary)
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APASmart Define. (2015). donated thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/donated/thesaurus/synonyms
ChicagoSmart Define. 2015. "donated thesaurus" https://smartdefine.org/donated/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, donated thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/donated/thesaurus/synonyms>.
MLASmart Define. "donated thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/donated/thesaurus/synonyms>