ferment Meaning in the Cambridge English Dictionary
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Meaning of “ferment” in the English Dictionary

"ferment" in British English

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fermentverb [I or T]

uk   /fəˈment/  us   /fɚ-/
If ​food or ​drink ferments or if you ferment it, the ​sugar in it ​changes into ​alcohol because of a ​chemicalprocess: You make ​wine by ​leavinggrapejuice to ferment until all the ​sugar has ​turned to ​alcohol.
noun [U] uk   /ˌfɜː.menˈteɪ.ʃən/  us   /ˌfɝː-/

fermentnoun [U]

uk   /ˈfɜː.ment/  us   /ˈfɝː-/ literary
a ​state of ​confusion, ​change, and ​lack of ​order or ​fighting: The ​resignation of the ​president has ​left the ​country in ferment.
(Definition of ferment from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"ferment" in American English

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fermentverb [I/T]

 us   /fərˈment/
biology, chemistry to ​changechemically through the ​action of ​livingsubstances, such as yeast or ​bacteria, or to use a ​substance to ​produce a ​chemicalchange

fermentnoun [U]

 us   /ˈfɜr·ment/
a ​state of ​confusion or ​excitedexpectation, esp. because of ​suddenlychangingconditions: He was a ​centralfigure in the ​intellectual ferment of his ​time.
(Definition of ferment from the Cambridge Academic Content Dictionary © Cambridge University Press)
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