2
main support(noun, expression, idiom)
2
maintain(verb, reinforce, buttress, buoy)
2
patron(noun, support, stay, advocate, champion)
2
promoter(noun, advocate, supporter, sponsor, backer)
2
reinforce(verb, hold, maintain, uphold, bolster)
2
rest
2
rock(noun, support, foundation, stronghold, pillar)
2
rope
2
shore up(verb, expression, phrasal verb, hold, maintain)
2
shoulder(verb, hold, maintain, stay, bear)
2
stalwart(support, stay, rock, fan, partisan)
2
stanchion(noun, support, stay, bar, prop)
2
stave(noun, support, stay, bar, prop)
2
strengthener(noun, support, stay, bar, prop)
2
sustain(verb, hold, maintain, uphold, reinforce)
2
truss(noun, support, stay, bar, prop)
2
undergird(verb, hold, maintain, stay, bear)
2
upbear(verb, hold, maintain, stay, bear)
2
uphold(verb, hold, maintain, reinforce, bolster)
2
well-wisher(support, stay, rock, fan, partisan)
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APASmart Define. (2015). mainstay thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/mainstay/thesaurus/synonyms
ChicagoSmart Define. 2015. "mainstay thesaurus" https://smartdefine.org/mainstay/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, mainstay thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/mainstay/thesaurus/synonyms>.
MLASmart Define. "mainstay thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/mainstay/thesaurus/synonyms>