575 entries under verb topic. ×

4
advocate(support, help, develop, cause)
4
bear up(expression, phrasal verb, hold, help)
4
blow up(expression, phrasal verb, increase, open)
4
cheer(support, hold, help, maintain)
4
comfort(support, hold, help, keep)
4
expand(increase, open, develop, extend)
4
fill out(expression, phrasal verb, increase, open)
4
further(support, take, help, advance)
4
nurture(support, help, give, advance)
4
shore(noun, support, hold, set)
4
substantiate(support, hold, help, increase)
4
undergird(hold, maintain, uphold, reinforce)
3
aggrandise
3
augment(support, increase, open, develop)
3
bear out(expression, phrasal verb, hold, help)
3
beef up(expression, support, increase, open)
3
befriend(support, help, advance, keep)
3
bless(support, take, promote, encourage)
3
build up(expression, support, take, help)
3
bulk up(expression, increase, open, develop)
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APASmart Define. (2016). bolster thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/bolster/thesaurus/synonyms
ChicagoSmart Define. 2016. "bolster thesaurus" https://smartdefine.org/bolster/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, bolster thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/bolster/thesaurus/synonyms>.
MLASmart Define. "bolster thesaurus" 26 February 2016. Web. 29 September 2026. <https://smartdefine.org/bolster/thesaurus/synonyms>