167 entries under base topic. ×

9
fundamental(noun, adjective, law, regulation, part)
9
infrastructure(noun, organization, support, cause, start)
9
principle(noun, organization, concept, law, philosophy)
9
understructure(noun, substance, balance, stand)
8
bedrock(noun, support, cause, start, reason)
8
source(noun, law, regulation, cause, start)
7
derivation(noun, cause, start, suggestion)
7
floor(noun, support, ground, bottom)
7
heart(noun, law, body, cause, start)
6
justification(noun, cause, reason, substance)
6
keystone(noun, beginning, source, essential)
6
pillar(noun, support, hold, block, back)
6
rest(noun, support, hold, block, back)
6
warrant(noun, cause, reason, true)
5
beginning(noun, cause, start, reason)
5
pedestal(noun, support, rest, stand)
5
preparation(noun, start, plan, development, resolve)
5
rudiment(noun, law, beginning, source)
5
seat(noun, support, cause, start, reason)
5
start(noun, cause, beginning, opening)
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APASmart Define. (2015). foundation thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/foundation/thesaurus/synonyms
ChicagoSmart Define. 2015. "foundation thesaurus" https://smartdefine.org/foundation/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, foundation thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/foundation/thesaurus/synonyms>.
MLASmart Define. "foundation thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/foundation/thesaurus/synonyms>