ferment

US /fɚˈment/
UK /fɚˈment/
"ferment" picture
1.

to undergo fermentation

:
The grapes began to ferment into wine.
Yeast is used to make dough ferment and rise.
2.

to stir up or incite (trouble or disorder)

:
His words seemed to ferment discontent among the workers.
The political unrest began to ferment in the capital.
1.

a state of agitation or unrest

:
There was a political ferment in the country.
The city was in a state of intellectual ferment.