WordfermentarMeaningto fermentPart of speechverbPronunciationCourseSpanish (Spain)LessonGradual progression (ir + gerund)Usages of fermentarEl vino va fermentando en el barril y cogiendo su aroma.The wine is fermenting in the barrel and taking on its aroma.Después de la cosecha, el zumo va fermentando en el barril.After the harvest, the juice is fermenting in the barrel.