189 entries under support topic. ×

8
make sure(verb, expression, idiom, secure)
8
sponsor(verb, help, maintain, promote)
7
make certain(verb, expression, idiom, secure)
7
testify(verb, state, maintain, back)
6
verify(verb, state, maintain, back)
6
word of honor(noun, expression, idiom, agreement)
5
authenticate(verb, state, praise, settle)
5
defend(verb, show, praise, favor)
5
stand behind(verb, expression, phrasal verb, praise)
4
affirmation(noun, agreement, permit, record)
4
angel(verb, secure, back, approve)
4
avow(verb, state, maintain, back)
4
back up(verb, expression, phrasal verb, maintain)
4
corroborate(verb, state, maintain, back)
4
finance(verb, help, set, promote)
4
maintain(verb, state, favor, back)
4
ratify(verb, state, maintain, praise)
4
sanction(noun, verb, state, secure)
4
stand up for(verb, expression, idiom, phrasal verb)
4
substantiate(verb, maintain, back, declare)
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APASmart Define. (2015). guarantee thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/guarantee/thesaurus/synonyms
ChicagoSmart Define. 2015. "guarantee thesaurus" https://smartdefine.org/guarantee/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, guarantee thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/guarantee/thesaurus/synonyms>.
MLASmart Define. "guarantee thesaurus" 24 December 2015. Web. 23 September 2026. <https://smartdefine.org/guarantee/thesaurus/synonyms>