1. A substance used to produce fermentation in dough or a liquid
   - leavening 
2. An influence that works subtly to lighten or modify something
   - leavening

1. Cause to puff up with a leaven
   - raise, prove

Derived forms: leavens, leavened, leavening

Type of: bring up, elevate, get up, imponderable, lift, raise, substance

Encyclopedia: Leaven

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• interject
• interjection
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• interkinesis
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