9
leaven(noun, change, agent, mold, yeast)
8
ferment(noun, change, agent, mold, leaven)
6
yeast(noun, change, agent, mold, leaven)
5
fermentation(noun, agitation, effervescence)
5
fungus(noun, foam, yeast)
4
catalyst(noun, change, agent, foam)
3
bacteria(mold, leaven, yeast)
3
barm(noun, mold, leaven, yeast)
3
mould
2
fermenting
2
raising
2
sourdough
2
yeasting
1
advancing
1
arousing
1
bacterium(noun, mold, leaven, yeast)
1
barmy
1
bicarbonate of soda(expression, idiom)
1
conjuring
1
contaminating
11 years ago|1.5k views|share |citing 
APASmart Define. (2015). leavening thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/leavening/thesaurus/synonyms
ChicagoSmart Define. 2015. "leavening thesaurus" https://smartdefine.org/leavening/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, leavening thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/leavening/thesaurus/synonyms>.
MLASmart Define. "leavening thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/leavening/thesaurus/synonyms>