- The definition of banshee means a mythological female spirit who cries to warn of an upcoming death.
An example of a banshee is a ghost who enters a house wailing as a warning.
The image of a banshee.
banshee definition by Webster's New World
Origin: Irish bean sidhe ; from bean, woman (see gyno-) plush sith, fairy
banshee definition by American Heritage Dictionary
Origin: Irish Gaelic bean sídhe, woman of the fairies, banshee : bean, woman (from Old Irish ben; see gwen- in Indo-European roots) + sídhe, fairy (from Old Irish síde, genitive of síd, fairy mound; see sed- in Indo-European roots).