51 entries under assure topic. ×

15
guarantee(noun, verb, support, state, give)
14
swear(verb, state, maintain, declare, tell)
12
testify(verb, state, give, maintain, declare)
11
confirm(verb, state, give, maintain, agree)
10
affirm(verb, support, state, give, maintain)
10
declare(verb, state, give, maintain, agree)
10
warrant(verb, support, give, back, declare)
9
vow(verb, support, give, pass, declare)
7
promise(verb, give, declare, assert, engage)
6
ensure(verb, declare, commit, undertake, affirm)
6
pledge(verb, pass, catch, declare, commit)
5
profess(verb, state, give, maintain, agree)
4
insure(verb, declare, commit, undertake, affirm)
4
secure(verb, declare, commit, undertake, affirm)
4
undertake(verb, catch, declare, engage, contract)
3
assent(noun, verb, declare, commit, undertake)
3
engage(verb, pass, declare, contract, commit)
2
agree(verb, pass, allow, catch, admit)
2
cross heart(verb, expression, state, maintain, agree)
2
plight(verb, declare, assert, engage, contract)
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APASmart Define. (2015). vouch thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/vouch/thesaurus/synonyms
ChicagoSmart Define. 2015. "vouch thesaurus" https://smartdefine.org/vouch/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, vouch thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/vouch/thesaurus/synonyms>.
MLASmart Define. "vouch thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/vouch/thesaurus/synonyms>