200 entries under support topic. ×

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adhere to(verb, expression, maintain, promote)
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adjuvant(adjective, supplementary)
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ancillary(adjective, supplementary)
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appurtenant(adjective, supplementary)
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argue for(expression, back, defend)
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assert under oath(expression, idiom, guarantee)
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assisting(adjective, supplementary)
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auxiliary(adjective, supplementary)
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backup(adjective, supplementary)
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be there for(verb, help, maintain, promote)
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bulwark(verb, strengthen, bolster)
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complementary(adjective, supplementary)
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condone(verb, help)
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contributory(adjective, supplementary)
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extra(adjective, supplementary)
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give moral support(expression, idiom, back, uphold)
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go to the wall for(verb, expression, idiom, defend)
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goad(verb, help)
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incite(verb, help)
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jack up(verb, expression, strengthen, bolster)
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APASmart Define. (2015). back up thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/back_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "back up thesaurus" https://smartdefine.org/back_up/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, back up thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/back_up/thesaurus/synonyms>.
MLASmart Define. "back up thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/back_up/thesaurus/synonyms>