noun ·same·as whisky, a liquor.
2. whiskey ·noun ·alt. of whisky.
3. whiskey ·noun an intoxicating liquor distilled from grain, potatoes, ·etc., especially in scotland, ireland, and the united states. in the united states, whisky is generally distilled from maize, rye, or wheat, but in scotland and ireland it is often made from malted barley.