150 entries under sustain topic. ×

10
warrant(verb, support, state, charge, show)
9
conserve(verb, support, cover, keep, maintain)
9
explain(verb, support, show, present, maintain)
9
rationalize(verb, support, show, maintain, favor)
9
stick up for(noun, verb, expression, idiom, phrasal verb)
8
contend(verb, support, state, hold, press)
8
endorse(verb, support, hold, help, show)
8
stand by(noun, verb, expression, phrasal verb, support)
7
claim(verb, support, state, hold, charge)
7
exonerate(verb, support, action, show, maintain)
7
rebut(verb, support, stop, separate, favor)
7
watch over(verb, expression, phrasal verb, support, fix)
6
exculpate(verb, support, show, maintain, favor)
6
nourish(verb, support, help, fix, keep)
6
plead(verb, support, show, present, maintain)
5
aid(verb, support, hold, help, show)
5
care for(verb, expression, phrasal verb, support, cover)
5
confirm(verb, support, help, keep, maintain)
5
foster(verb, support, hold, help, fix)
5
look after(verb, expression, phrasal verb, support, fix)
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APASmart Define. (2015). defend thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/defend/thesaurus/synonyms
ChicagoSmart Define. 2015. "defend thesaurus" https://smartdefine.org/defend/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, defend thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/defend/thesaurus/synonyms>.
MLASmart Define. "defend thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/defend/thesaurus/synonyms>