94 entries under foundation topic. ×

1
presumption(noun, support, action, base, beginning)
1
presupposition(noun, support, action, base, beginning)
1
principal element(noun, expression, support, action, base)
1
principle(noun, support, action, base, beginning)
1
proof(noun, support, action, power, right)
1
reason(noun, support, action, stay, substance)
1
rise(cause, basis)
1
root(noun, support, action, cause, substance)
1
rudiment(noun, support, action, base, beginning)
1
security(noun, support, action, base, permit)
1
starting point(noun, expression, cause, rise, base)
1
substratum(noun, support, action, substance, base)
1
support(noun, action, hold, break, drop)
1
theorem(noun, support, action, base, beginning)
1
theory(noun, support, action, base, beginning)
1
underpinning(noun, support, action, substance, base)
0
author(cause, basis)
0
authorship(cause, basis)
0
begetter(cause, basis)
0
beginning(noun, base, source, root)
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APASmart Define. (2016). authority thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/authority/thesaurus/synonyms
ChicagoSmart Define. 2016. "authority thesaurus" https://smartdefine.org/authority/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, authority thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/authority/thesaurus/synonyms>.
MLASmart Define. "authority thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/authority/thesaurus/synonyms>