64 entries under noun topic. ×

1
determinant(reason, element, matter, source)
1
doer(reason, element, matter, source)
1
end(reason, element, matter, source)
1
enzyme(mold, yeast, leavening)
1
explanation(reason, element, matter, source)
1
genesis(reason, element, matter, source)
1
grounds(reason, element, matter, source)
1
incitement(reason, element, matter, spur)
1
instigation(reason, element, matter, source)
1
mainspring(cause, reason, element, matter)
1
maker(reason, element, matter, source)
1
motivation(reason, element, matter, spur)
1
object(reason, element, matter, source)
1
origin(cause, reason, matter, source)
1
oxidation
1
perversion
1
poisoning
1
pollution
1
prime mover(expression, idiom, cause, reason)
1
principle(cause, reason, matter, source)
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APASmart Define. (2015). leaven thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/leaven/thesaurus/synonyms
ChicagoSmart Define. 2015. "leaven thesaurus" https://smartdefine.org/leaven/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, leaven thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/leaven/thesaurus/synonyms>.
MLASmart Define. "leaven thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/leaven/thesaurus/synonyms>