vermouthPronunciation: /ˈvəːməθ, vəˈmuːθ/Translate vermouth | into German | into Italian Definition of vermouth noun [mass noun] a red or white wine flavoured with aromatic herbs, chiefly made in France and Italy and drunk mixed with gin. Origin:from French vermout, from German Wermut 'wormwood'vermouth in other Oxford dictionaries Definition of vermouth in the US English dictionary