128 entries under confirm topic. ×

1
ascertain(verb, study, get, show, determine)
1
check on(verb, expression, story, verify)
1
check up(verb, expression, story, verify)
1
clear(verb, support, favor, defend)
1
commend(verb, support, praise, favor, back)
1
countersign(verb, state, show, approve)
1
declare true(verb, expression, story, verify)
1
demonstrate(verb, show, determine, prove)
1
determine(verb, study, get, show, observe)
1
double check(verb, expression, story, verify)
1
exhibit(verb, support, hold, take, show)
1
give a boost to(verb, expression, idiom, support, praise)
1
give green light(verb, expression, idiom, support, praise)
1
give nod(verb, expression, story, verify)
1
give the go-ahead(verb, expression, idiom, support, praise)
1
give the nod(verb, expression, idiom, support, praise)
1
go along with(verb, expression, idiom, support, hold)
1
guarantee(verb, support, maintain, praise, favor)
1
hoist(verb, support, move, hold, take)
1
hold to(verb, expression, support, maintain, promote)
11 years ago|33k views|share |citing 
APASmart Define. (2015). sustain thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/sustain/thesaurus/synonyms
ChicagoSmart Define. 2015. "sustain thesaurus" https://smartdefine.org/sustain/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, sustain thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/sustain/thesaurus/synonyms>.
MLASmart Define. "sustain thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/sustain/thesaurus/synonyms>