231 entries under sustain topic. ×

4
survive(verb, support, advance, keep, continue)
4
validate(verb, support, state, help, accept)
3
aid(verb, support, hold, help, keep)
3
bear out(verb, expression, support, hold, help)
3
bear up(verb, expression, phrasal verb, support, help)
3
countenance(verb, support, hold, take, help)
3
lengthen(verb, advance, continue, stay, extend)
3
live on(expression, advance, continue, stay, extend)
3
perdure(verb, advance, continue, stay, extend)
3
progress(noun, verb, advance, continue, stay)
3
promote(verb, support, hold, help, advance)
3
rationalize(verb, support, order, favor, back)
3
renew(verb, keep, continue, care)
3
stay on(expression, advance, continue, stay, extend)
3
substantiate(verb, support, hold, help, favor)
2
answer for(verb, expression, support, secure, favor)
2
apologize for(verb, expression, support, favor, back)
2
assist(verb, support, hold, help, keep)
2
bankroll(verb, support, help, keep, encourage)
2
boost(verb, support, hold, help, accept)
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APASmart Define. (2016). maintain thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/maintain/thesaurus/synonyms
ChicagoSmart Define. 2016. "maintain thesaurus" https://smartdefine.org/maintain/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, maintain thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/maintain/thesaurus/synonyms>.
MLASmart Define. "maintain thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/maintain/thesaurus/synonyms>