223 entries under back topic. ×

7
abet(verb, support, hold, help, keep)
7
advocate(verb, support, develop, maintain, promote)
7
assert(verb, support, show, maintain, favor)
7
authenticate(verb, support, show, determine, praise)
7
cherish(verb, support, hold, take, maintain)
7
establish(verb, support, hold, help, show)
7
relieve(verb, support, help, keep, develop)
6
attest(verb, support, show, determine, praise)
6
authorize(verb, support, accept, praise, favor)
6
champion(verb, support, hold, help, maintain)
6
comfort(noun, verb, support, hold, help)
6
countenance(verb, support, hold, take, go)
6
espouse(verb, support, hold, maintain, oppose)
6
stand by(verb, expression, phrasal verb, support, help)
6
stand up for(verb, expression, idiom, support, hold)
6
stick up for(verb, expression, idiom, phrasal verb, support)
5
bear out(verb, expression, phrasal verb, support, hold)
5
benefit(verb, support, help, maintain)
5
care for(verb, expression, support, hold, keep)
5
fund(verb, maintain, encourage, raise)
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APASmart Define. (2015). sustain thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sustain/thesaurus/synonyms
ChicagoSmart Define. 2015. "sustain thesaurus" https://smartdefine.org/sustain/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, sustain thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sustain/thesaurus/synonyms>.
MLASmart Define. "sustain thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/sustain/thesaurus/synonyms>