410 entries under verb topic. ×

4
ratify(settle, affirm, guarantee)
4
stand behind(expression, support, maintain, secure)
4
undertake(agree, declare, approve, uphold)
4
validate(state, settle, confirm, affirm)
4
witness(support, state, maintain, secure)
3
accept(affirm, security)
3
admit
3
back(support, maintain, secure, declare)
3
brace up(expression, phrasal verb, promise, guarantee)
3
bring home to(expression, idiom, phrasal verb, get)
3
buck up(expression, phrasal verb, encourage, inspire)
3
commit(agree, declare, undertake, affirm)
3
convert(get, encourage, influence, prompt)
3
declare(support, state, maintain, back)
3
demonstrate(get, influence, prompt, persuade)
3
evidence(support, maintain, secure, protect)
3
ice(informal, certain, verify, ensure)
3
indemnify(cover, protect, answer, insure)
3
maintain(support, secure, back, declare)
3
nail down(expression, phrasal verb, secure, establish)
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APASmart Define. (2015). assure thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/assure/thesaurus/synonyms
ChicagoSmart Define. 2015. "assure thesaurus" https://smartdefine.org/assure/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, assure thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/assure/thesaurus/synonyms>.
MLASmart Define. "assure thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/assure/thesaurus/synonyms>