62 entries under maintain topic. ×

38
assure(verb, support, secure, settle)
24
secure(verb, support, secure, agree)
23
warrant(noun, verb, support, secure)
22
promise(verb, support, give, secure)
20
confirm(verb, support, secure, settle)
18
insure(verb, support, secure, agree)
17
make certain(verb, expression, idiom, support, check)
15
make sure(verb, expression, idiom, support, check)
12
safeguard(verb, secure, confirm, uphold)
12
pledge(verb, support, secure, agree)
10
certify(verb, support, secure, approve)
9
guaranty(noun, verb, support, secure)
8
protect(verb, support, secure, confirm)
7
guard(verb, secure, see, note)
6
defend(verb, approve, uphold, protect)
6
reassure(verb, support, secure, protect)
5
affirm(verb, support, secure, declare)
4
back(verb, support, secure, approve)
4
endorse(verb, support, secure, approve)
4
stand behind(verb, expression, support, secure)
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APASmart Define. (2015). ensure thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ensure/thesaurus/synonyms
ChicagoSmart Define. 2015. "ensure thesaurus" https://smartdefine.org/ensure/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, ensure thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ensure/thesaurus/synonyms>.
MLASmart Define. "ensure thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/ensure/thesaurus/synonyms>