139 entries under verb topic. ×

3
hold up(expression, phrasal verb, support, reinforce)
3
build(rest, base, provide, over)
3
endure(continue, stay, extend, sustain)
3
ground(noun, rest, base, provide)
3
hinge(support, rest, base)
3
predicate(rest, base, provide, over)
3
subscribe(support, back, sign, uphold)
3
substantiate(support, back, sign, explain)
3
underlie
2
attest(support, back, sign, uphold)
2
authenticate(support, back, sign, explain)
2
circumstantiate(support, back, sign, uphold)
2
construct(rest, base)
2
debunk(support, back, sign, uphold)
2
defend
2
depend(rest, base)
2
derive(rest, base)
2
establish(support, back, rest, base)
2
explain(support, back, sign, uphold)
2
fortify(support, strengthen, reinforce, buttress)
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APASmart Define. (2015). underpin thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms
ChicagoSmart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, underpin thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>.
MLASmart Define. "underpin thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms>