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English to English noun
| 1 |
a substance used to produce fermentation in dough or a liquid |  | source: wordnet30
| 2 |
an influence that works subtly to lighten or modify something | | Example: his sermons benefited from a leavening of humor
source: wordnet30
| 3 |
Any substance that produces, or is designed to produce, fermentation, as in dough or liquids; esp., a portion of fermenting dough, which, mixed with a larger quantity of dough, produces a general change in the mass, and renders it light; yeast; barm. | | source: webster1913 verb
| 4 |
cause to puff up with a leaven | | Example: unleavened bread
source: wordnet30
| 5 |
To make light by the action of leaven; to cause to ferment. | | source: webster1913
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