3
baseboard
3
bunker
3
cellarage
3
excavation
3
seat(noun, support, rest, base, balance)
3
sole(noun, bottom)
3
underpinning(noun, support, rest, base, balance)
3
understructure(noun, balance, foundation, basis, warrant)
3
wine cellar(expression, idiom)
2
box(noun, safe, depository, crypt, cellar)
2
crib
2
dado
2
depository
2
depot(center, seat, headquarters)
2
dock(center, seat, headquarters)
2
downstairs(level, story, deck)
2
dump
2
flooring(noun, level, story, deck)
2
fundament(support, rest, base)
2
glory hole
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APASmart Define. (2015). basement thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/basement/thesaurus/synonyms
ChicagoSmart Define. 2015. "basement thesaurus" https://smartdefine.org/basement/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, basement thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/basement/thesaurus/synonyms>.
MLASmart Define. "basement thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/basement/thesaurus/synonyms>