1,155 entry under verb topic. ×

4
succor(support, develop, maintain, promote)
4
suckle(feed, nurture, serve, nurse)
4
take up with(expression, idiom, support, help)
4
tend(support, raise, aid, feed)
4
undergird(hold, maintain, uphold, reinforce)
4
uplift(support, maintain, promote, encourage)
4
wear(hold, take, continue, follow)
3
accommodate(support, help, give, keep)
3
afford(support, help, give, keep)
3
agree(verify, substantiate, validate)
3
apply(continue, stay, extend, last)
3
attend(support, fix, back, aid)
3
avow
3
bear with(expression, phrasal verb, support, hold)
3
begin
3
bide(hold, continue, follow, stay)
3
board(support, fix)
3
bolster up(expression, phrasal verb, support)
3
claim(support, favor, defend, explain)
3
commence
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APASmart Define. (2015). sustain thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/sustain/thesaurus/synonyms
ChicagoSmart Define. 2015. "sustain thesaurus" https://smartdefine.org/sustain/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, sustain thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/sustain/thesaurus/synonyms>.
MLASmart Define. "sustain thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/sustain/thesaurus/synonyms>