1
escarpment
1
essence(noun, support, action, cause, start)
1
essential(noun, support, action, base, beginning)
1
evidence(noun, support, action, cause, reason)
1
explanation(noun, support, action, base, beginning)
1
fire
1
flagstone
1
flesh and blood(expression, idiom, substantiality)
1
flooring
1
flotation(noun, hold, block, back, base)
1
fond
1
foothold(noun, hold, block, back, base)
1
frame
1
fundamental particle
1
gallery
1
guide(noun, hold, block, back, base)
1
hard fact(noun, expression, support, action, base)
1
heart(noun, support, action, cause, start)
1
inside
1
interior
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APASmart Define. (2015). substratum thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/substratum/thesaurus/synonyms
ChicagoSmart Define. 2015. "substratum thesaurus" https://smartdefine.org/substratum/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, substratum thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/substratum/thesaurus/synonyms>.
MLASmart Define. "substratum thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/substratum/thesaurus/synonyms>