167 entries under base topic. ×

4
occasion(noun, cause, start, reason)
4
authority(noun, cause, strength, substance)
4
excuse(noun, cause, reason, call)
4
prop(noun, support, hold, block, back)
4
rationale(noun, concept, understanding, philosophy, cause)
4
stay(noun, hold, block, back, substance)
3
baseboard
3
dado
3
inception(noun, cause, start, beginning)
3
nub(noun, body, cause, start, substance)
3
nucleus(noun, body, cause, start, substance)
3
preliminaries(noun, practice, discipline, education)
3
starting point(noun, expression, idiom, cause, start)
3
underneath(noun, ground, bottom, bed)
3
underside(noun, ground, bottom, bed)
2
assumption(noun, concept, law, regulation, understanding)
2
axiom(noun, law, regulation, rule)
2
bedding(noun, hold, block, back)
2
block(noun, support, hold, back)
2
brace(noun, hold, block, back)
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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>