Synonyms|617Antonyms|32|Broader|9Narrower|15Related|276

68 entries under support topic. ×

5
assure(verb, state, maintain, secure)
5
guarantee(verb, state, maintain, back)
5
validate(verb, state, show, maintain)
5
vow(verb, maintain, back, declare)
4
authenticate(verb, state, show, determine)
4
contend(verb, state, present, maintain)
3
answer for(expression, maintain, secure, back)
3
back(verb, show, maintain, determine)
3
bear out(verb, expression, phrasal verb, show)
3
cosign(verb, maintain, secure, back)
3
endorse(verb, state, maintain, secure)
3
pledge(verb, maintain, secure, declare)
3
promise(verb, maintain, secure, declare)
3
stand up for(verb, expression, idiom, phrasal verb)
3
swear to(verb, expression, maintain, back)
3
vouch for(verb, expression, phrasal verb, show)
2
get behind(expression, maintain, secure, back)
2
okay(verb, state, maintain, back)
2
predicate(verb, state, maintain, oppose)
2
rubber-stamp(verb, state, maintain, back)
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APASmart Define. (2015). testify thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/testify/thesaurus/synonyms
ChicagoSmart Define. 2015. "testify thesaurus" https://smartdefine.org/testify/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, testify thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/testify/thesaurus/synonyms>.
MLASmart Define. "testify thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/testify/thesaurus/synonyms>