404 entries under verb topic. ×

3
witness(support, state, maintain, praise)
2
accept(start, assume, attempt, security)
2
accredit(support, state, control, praise)
2
ascertain(state, confirm, verify)
2
assert(support, state, maintain, favor)
2
asseverate(support, state, maintain, back)
2
attempt(accept, start, try, assume)
2
attest to(expression, support, maintain, back)
2
bankroll(support, help, promote, secure)
2
bear witness(expression, idiom, promise)
2
bind oneself(expression, support, incite, promise)
2
bless(support, praise, favor, back)
2
champion(support, maintain, praise, favor)
2
commit oneself(expression, accept, start, try)
2
cosign(support, maintain, back, declare)
2
countenance(noun, support, praise, favor)
2
declare(support, state, maintain, back)
2
demand(noun, order, require, authorize)
2
evince(promise, assure, pledge, warrant)
2
fend(protect, safeguard)
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APASmart Define. (2015). guarantee thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/guarantee/thesaurus/synonyms
ChicagoSmart Define. 2015. "guarantee thesaurus" https://smartdefine.org/guarantee/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, guarantee thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/guarantee/thesaurus/synonyms>.
MLASmart Define. "guarantee thesaurus" 24 December 2015. Web. 26 September 2026. <https://smartdefine.org/guarantee/thesaurus/synonyms>