4
vouch(verb, give)
4
warrant(verb, authorize, security, guarantee, justify)
3
adherent(noun, support, stay, advocate, supporter)
3
advertise(verb, help, advance, develop, present)
3
approve(verb, secure, back, uphold, authorize)
3
assure
3
capitalize(verb, support, promote, back, finance)
3
contributor(noun, help, benefactor)
3
endow(verb, support, give, promote, secure)
3
fan(noun, stay, advocate, supporter, friend)
3
grubstake(verb, support, help, promote, encourage)
3
grubstaker(noun, person, advocate, supporter, backer)
3
guardian(noun, advocate, guard, shield, supporter)
3
indorse
3
pay(verb, secure, back, approve, endorse)
3
pay for(verb, expression, phrasal verb, support, keep)
3
sanction(verb, support, encourage, secure, favor)
3
secure(verb, back, approve, uphold, authorize)
3
set up(verb, expression, phrasal verb, keep, maintain)
3
side with(verb, expression, support, encourage, favor)
11 years ago|14k views|share |citing 
APASmart Define. (2015). sponsor thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sponsor/thesaurus/synonyms
ChicagoSmart Define. 2015. "sponsor thesaurus" https://smartdefine.org/sponsor/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, sponsor thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sponsor/thesaurus/synonyms>.
MLASmart Define. "sponsor thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/sponsor/thesaurus/synonyms>