120 entries under support topic. ×

8
certify(verb, state, show, maintain)
7
justify(verb, state, hold, take)
7
sustain(verb, show, maintain, favor)
7
vow(verb, hold, press, maintain)
6
plead(verb, state, present, maintain)
5
advocate(verb, state, hold, maintain)
5
assure(verb, maintain, back, confirm)
5
propose(verb, advance, present, favor)
5
stand up for(verb, expression, idiom, phrasal verb)
5
substantiate(verb, show, maintain, favor)
5
urge(verb, state, hold, charge)
4
corroborate(verb, state, show, maintain)
4
prove(verb, state, show, mark)
4
represent(verb, state, give, mean)
3
approve(verb, favor, back, sustain)
3
endorse(verb, maintain, favor, back)
3
establish(verb, state, mark, present)
3
put forth(verb, expression, state, maintain)
3
stand for(verb, expression, phrasal verb, state)
3
validate(verb, state, maintain, favor)
11 years ago|23k views|share |citing 
APASmart Define. (2015). assert thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/assert/thesaurus/synonyms
ChicagoSmart Define. 2015. "assert thesaurus" https://smartdefine.org/assert/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, assert thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/assert/thesaurus/synonyms>.
MLASmart Define. "assert thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/assert/thesaurus/synonyms>