11 entries under courtesy topic. ×

14
free(adjective, charge, spontaneous, gratuitous)
12
gratis(adjective, free, spontaneous, paper)
11
gratuitous(adjective, free, paper, complimentary)
3
free of charge(expression, adjective, idiom, free)
3
on the house(expression, adjective, idiom, free)
2
honorary(adjective, free, cheapness, gratis)
1
as a perk(expression, adjective, idiom, free)
1
chargeless(adjective, free, spontaneous, paper)
1
comp(adjective, free, paper, complimentary)
1
donated(adjective, free, gratis)
1
free lunch(expression, adjective, free, complimentary)
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APASmart Define. (2015). costless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/costless/thesaurus/synonyms
ChicagoSmart Define. 2015. "costless thesaurus" https://smartdefine.org/costless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, costless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/costless/thesaurus/synonyms>.
MLASmart Define. "costless thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/costless/thesaurus/synonyms>