115 entries under support topic. ×

4
asseverate(verb, state, maintain, back)
4
check(verb, show, determine, back)
4
declare(verb, state, show, maintain)
4
validate(verb, state, show, determine)
3
establish(verb, state, show, present)
3
explain(verb, show, present, maintain)
3
guarantee(verb, state, maintain, praise)
3
profess(verb, state, maintain, back)
3
ratify(verb, state, show, maintain)
3
verify(verb, state, show, maintain)
3
vouch for(verb, expression, phrasal verb, show)
2
answer for(expression, maintain, secure, back)
2
approve(verb, state, praise, favor)
2
assert(verb, state, show, present)
2
back(verb, show, maintain, determine)
2
bear out(verb, expression, phrasal verb, show)
2
bless(verb, praise, favor, back)
2
circumstantiate(verb, back, sign, uphold)
2
cosign(verb, maintain, secure, back)
2
debunk(verb, back, sign, uphold)
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APASmart Define. (2015). witness thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/witness/thesaurus/synonyms
ChicagoSmart Define. 2015. "witness thesaurus" https://smartdefine.org/witness/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, witness thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/witness/thesaurus/synonyms>.
MLASmart Define. "witness thesaurus" 23 December 2015. Web. 30 September 2026. <https://smartdefine.org/witness/thesaurus/synonyms>