2
book
2
circumstantiate(verb, support, back, sign, uphold)
2
cite(verb, state, maintain, declare, tell)
2
claim(verb, state, maintain, agree, allow)
2
cross heart(verb, expression, state, maintain, agree)
2
debunk(verb, support, back, sign, uphold)
2
declaration
2
demonstrate(verb, state, maintain, tell, reveal)
2
depone
2
disclose(verb, state, maintain, tell, reveal)
2
establish(verb, prove, validate, ratify, evince)
2
exhibit(verb, evince)
2
explain(verb, support, back, sign, uphold)
2
give green light(expression, idiom, support, back, sign)
2
give high sign(expression, idiom, support, back, sign)
2
insist(verb, state, maintain, declare, tell)
2
justify(verb, support, back, sign, confirm)
2
kiss the book(expression, idiom, affirmation)
2
manifest(verb, state, maintain, tell, reveal)
2
plead(verb, state, declare)
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APASmart Define. (2015). vouch thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/vouch/thesaurus/synonyms
ChicagoSmart Define. 2015. "vouch thesaurus" https://smartdefine.org/vouch/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, vouch thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/vouch/thesaurus/synonyms>.
MLASmart Define. "vouch thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/vouch/thesaurus/synonyms>