The meaning of FERMENT is to undergo fermentation. How to use ferment in a sentence.

FERMENT definition: any of a group of living organisms, as yeasts, molds, and certain bacteria, that cause fermentation. See examples of ferment used in a sentence.

If food or drink ferments or if you ferment it, it goes through a chemical change because of the action of yeast or bacteria, which may cause it to produce bubbles or heat, or turn sugars in it …

1. To cause to undergo fermentation: Yeasts ferment sugars. 2. To produce by or as if by fermentation: ferment the wine in oak barrels; hostility that was fermented by envy. 3. To make …

Dec 1, 2025 · ferment (plural ferments) Something, such as a yeast or barm, that causes fermentation. A state of agitation or of turbulent change. quotations

Definition of ferment verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Grapes being trodden to extract the juice and made into wine in storage jars. Tomb of Nakht, 18th dynasty, Thebes, Ancient Egypt. Sourdough starter. In food processing, fermentation is the …

ferment - WordReference English dictionary, questions, discussion and forums. All Free.

When change is a brewin', remember: to ferment is to cause a chemical change to food or drink, like turning grapes into wine, but to foment is to stir up trouble, like turning a group of people …

Ferment is excitement and trouble caused by change or uncertainty. The whole country has been in a state of political ferment for some months.