96 entries under support topic. ×

38
guarantee(noun, verb, state, cover)
31
ensure(verb, maintain, secure, settle)
27
promise(noun, verb, give, maintain)
25
warrant(noun, verb, cover, maintain)
23
pledge(verb, maintain, secure, agree)
20
insure(verb, cover, maintain, secure)
18
certify(verb, state, maintain, secure)
16
confirm(verb, state, maintain, secure)
15
secure(verb, cover, keep, maintain)
15
reassure(verb, state, calm, meet)
14
affirm(verb, maintain, secure, declare)
13
guaranty(noun, verb, maintain, secure)
13
vow(verb, maintain, agree, back)
12
swear(verb, state, maintain, secure)
12
attest(verb, state, maintain, secure)
11
make sure(verb, expression, idiom, maintain)
8
assert(verb, maintain, back, confirm)
8
aver(verb, state, maintain, secure)
8
make certain(verb, expression, idiom, maintain)
8
vouch(verb, state, give, back)
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APASmart Define. (2015). assure thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/assure/thesaurus/synonyms
ChicagoSmart Define. 2015. "assure thesaurus" https://smartdefine.org/assure/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, assure thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/assure/thesaurus/synonyms>.
MLASmart Define. "assure thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/assure/thesaurus/synonyms>