107 entries under base topic. ×

1
hard fact(noun, expression, support, action)
1
heart(noun, support, action, cause, start)
1
hold(noun, verb, support, block, back)
1
justification(noun, support, action, cause, reason)
1
keynote(noun, support, action, beginning)
1
keystone(noun, support, action, beginning)
1
law(noun, support, action, beginning)
1
lining(noun, hold, block, back)
1
means(noun, hold, block, back)
1
medium(noun, hold, block, back)
1
nexus(noun, support, action, beginning)
1
nucleus(noun, support, action, cause, start)
1
origin(cause, source, foundation, basis)
1
pedestal(support, rest, post, center)
1
platform(noun, hold, block, back)
1
pole(noun, support, hold, block, back)
1
post(noun, support, hold, block, back)
1
postulate(noun, support, action, beginning)
1
premise(noun, support, action, cause, reason)
1
preparation(noun, basis)
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APASmart Define. (2015). underpinning thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/underpinning/thesaurus/synonyms
ChicagoSmart Define. 2015. "underpinning thesaurus" https://smartdefine.org/underpinning/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, underpinning thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/underpinning/thesaurus/synonyms>.
MLASmart Define. "underpinning thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/underpinning/thesaurus/synonyms>