20
support(noun, verb, hold, maintain, stay)
15
buttress(noun, verb, support, hold, maintain)
14
anchor(noun, support, hold, hope, essential)
13
backbone(noun, support, stay, rock, partisan)
13
pillar(noun, support, hold, stay, rock)
12
prop(noun, verb, support, hold, maintain)
10
brace(noun, verb, support, hold, maintain)
9
stay(noun, verb, support, hold, maintain)
8
column(noun, support, brace, prop, leg)
8
supporter(noun, support, stay, advocate, rock)
7
keystone(noun, support, base, essential, foundation)
7
linchpin(noun, support, essential, foundation, prop)
6
bulwark(noun, support, rock, prop, fortification)
6
crutch(noun, verb, support, hold, maintain)
6
staff(noun, support, hold, stay, bar)
5
apologist(support, stay, rock, fan, partisan)
5
back
5
sheet anchor(noun, expression, idiom, hope, refuge)
5
upholder(noun, support, stay, rock, partisan)
4
bread and butter(noun, expression, idiom, lifeblood)
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APASmart Define. (2015). mainstay thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/mainstay/thesaurus/synonyms
ChicagoSmart Define. 2015. "mainstay thesaurus" https://smartdefine.org/mainstay/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, mainstay thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/mainstay/thesaurus/synonyms>.
MLASmart Define. "mainstay thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/mainstay/thesaurus/synonyms>