124 entries under base topic. ×

12
basis(noun, support, action, cause, start)
12
foundation(noun, support, hold, cause, start)
12
groundwork(noun, support, hold, cause, start)
10
base(noun, support, action, hold, cause)
10
bed(noun, support, hold, block, back)
8
bottom(noun, support, cause, start, substance)
7
basement(noun, support, rest, balance)
7
bedrock(noun, support, action, cause, start)
7
footing(noun, support, action, hold, cause)
7
ground(noun, support, cause, start, substance)
6
floor(noun, support, film, foundation)
6
root(noun, support, action, cause, reason)
6
substructure(noun, support, hold, block, back)
5
fundament(noun, support, rest, over)
5
infrastructure(noun, support, action, cause, start)
5
principle(noun, support, action, beginning)
5
seat(noun, support, cause, start, reason)
5
support(noun, support, action, substance, authority)
5
underpinning(noun, support, action, hold, cause)
3
core(noun, support, action, cause, start)
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APASmart Define. (2015). substratum thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/substratum/thesaurus/synonyms
ChicagoSmart Define. 2015. "substratum thesaurus" https://smartdefine.org/substratum/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, substratum thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/substratum/thesaurus/synonyms>.
MLASmart Define. "substratum thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/substratum/thesaurus/synonyms>