Definition of banshie

• n. - A supernatural being supposed by the Irish and Scotch peasantry to warn a family of the speedy death of one of its members, by wailing or singing in a mournful voice under the windows of the house.
• n. - A supernatural being supposed by the Irish and Scotch peasantry to warn a family of the speedy death of one of its members, by wailing or singing in a mournful voice under the windows of the house.