1
interiority
1
interspace(noun, interiority)
1
intrados
1
item
1
justification(noun, support, action, cause, reason)
1
keynote(noun, support, action, base, beginning)
1
keystone(noun, support, action, base, beginning)
1
law(noun, support, action, base, beginning)
1
ledge
1
level
1
lining(noun, hold, block, back, base)
1
lower side
1
lowest layer
1
lowest level
1
material world
1
means(noun, hold, block, back, base)
1
measures
1
meat
1
medium(noun, hold, block, back, base)
1
molecule
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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>