Fermented drinks are beverages that have been produced through the process of fermentation, which is the conversion of sugars into alcohol or organic acids. The three crossword solutions for the term 'fermented drink' are BREW, MEAD, and LAGER. BREW is an alcoholic beverage made by boiling a mixture of malt, hops, and water. MEAD is an alcoholic beverage made from fermented honey and water. LAGER is a type of beer that has been brewed using bottom-fermenting yeast and stored at cold temperatures.