86 entries under guarantee topic. ×

5
promise(verb, support, maintain, secure, approve)
5
underwrite(verb, support, favor, back, approve)
4
clinch(verb, state, maintain, secure, establish)
4
maintain(verb, support, state, accept, secure)
4
satisfy(verb, promise, pledge)
4
stand behind(verb, expression, support, maintain, praise)
4
vow(verb, support, maintain, back, declare)
3
bond
3
contend(verb, support, state, maintain, back)
3
stand up for(expression, idiom, support, state, maintain)
3
swear to(verb, expression, support, maintain, back)
2
answer for(verb, expression, support, maintain, secure)
2
argue(verb, state, show, maintain, declare)
2
assert under oath(expression, idiom, support)
2
cinch(verb, state, maintain, secure, establish)
2
justify(verb, support, show, determine, back)
2
nail down(verb, expression, state, maintain, secure)
2
safeguard(verb, secure, establish, confirm, protect)
1
convince(verb, show, determine, confirm, explain)
1
defend(verb, support, accept, favor, agree)
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APASmart Define. (2016). certify thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/certify/thesaurus/synonyms
ChicagoSmart Define. 2016. "certify thesaurus" https://smartdefine.org/certify/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, certify thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/certify/thesaurus/synonyms>.
MLASmart Define. "certify thesaurus" 11 January 2016. Web. 23 September 2026. <https://smartdefine.org/certify/thesaurus/synonyms>