Synonyms|216Antonyms|49|Broader|12Narrower|0Related|56

35 entries under sign topic. ×

15
support(verb, support, hold, back, continue)
8
corroborate(verb, support, back, uphold)
7
bear out(verb, expression, phrasal verb, support, back)
7
uphold(verb, support, hold, back, continue)
5
back(verb, support, uphold, prove)
3
subscribe(verb, support, back, uphold)
3
substantiate(verb, support, back, explain)
2
attest(verb, support, back, uphold)
2
authenticate(verb, support, back, explain)
2
circumstantiate(verb, support, back, uphold)
2
debunk(verb, support, back, uphold)
2
explain(verb, support, back, uphold)
2
give green light(expression, idiom, support, back)
2
give high sign(expression, idiom, support, back)
2
justify(verb, support, back, explain)
2
vouch(verb, support, back, uphold)
2
warrant(verb, support, back, uphold)
2
witness(verb, support, back, uphold)
1
affirm(verb, support, back, uphold)
1
approve(verb, support, back, prove)
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APASmart Define. (2015). underpin thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms
ChicagoSmart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, underpin thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>.
MLASmart Define. "underpin thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms>