60 entries under sustain topic. ×

14
maintain(verb, keep, continue, spread, care)
9
conserve(verb, support, control, keep, maintain)
8
last(verb, keep, continue, endure)
6
extend(verb, delay, continue, spread)
5
keep up(verb, expression, phrasal verb, control, keep)
5
secure(verb, keep, maintain, continue, spread)
5
support(verb, control, keep, continue, spread)
5
uphold(verb, support, control, keep, maintain)
4
retain(verb, support, control, keep, maintain)
3
endure(verb, keep, continue, endure)
3
freeze(verb, keep, maintain, secure, continue)
3
keep on(verb, expression, keep, continue)
2
drag out(verb, expression, delay, continue, extend)
2
lengthen(delay, extend, persist, persevere)
2
protect(verb, support, control, keep, maintain)
1
advance(verb, support, control, keep, continue)
1
care for(verb, expression, support, keep, maintain)
1
cure(verb, keep, maintain, secure, continue)
1
defend(verb, keep, maintain, secure, continue)
1
draw out(expression, delay, extend, persist)
<123>
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APASmart Define. (2015). perpetuate thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/perpetuate/thesaurus/synonyms
ChicagoSmart Define. 2015. "perpetuate thesaurus" https://smartdefine.org/perpetuate/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, perpetuate thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/perpetuate/thesaurus/synonyms>.
MLASmart Define. "perpetuate thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/perpetuate/thesaurus/synonyms>