Synonyms|216Antonyms|49|Broader|12Narrower|0Related|56
2
explain(verb, support, back, sign, uphold)
2
fortify(verb, support, strengthen, reinforce, buttress)
2
found(verb, rest, base, provide, over)
2
give green light(expression, idiom, support, back, sign)
2
give high sign(expression, idiom, support, back, sign)
2
justify(verb, support, back, sign, explain)
2
keep up(verb, expression, continue, stay, extend)
2
locate(verb, rest, base)
2
maintain
2
patronage
2
patronize
2
plant(verb, informal, rest, base)
2
rest(verb, support, base, provide, reinforce)
2
root(verb, rest, base, provide, over)
2
set up(verb, expression, phrasal verb, rest, base)
2
shoulder(verb, take, continue, stay, extend)
2
station(verb, rest, base)
2
strengthen(verb, support, hold, reinforce, buttress)
2
suffer
2
tolerate
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APASmart Define. (2015). underpin thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms
ChicagoSmart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, underpin thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>.
MLASmart Define. "underpin thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms>