Definitions

1. noun

the lower world or underworld, especially in medieval European literature, such as Hell or Purgatory

“In medieval legend, the souls of the wicked were sent to the nether for punishment.”

2. adverb

in the lower world or underworld

“She was said to have descended to the nether and returned with a magical amulet.”

3. proper noun

a place or region, especially in medieval European literature, considered to be in the lower world or underworld

“The nether was said to be a place of eternal darkness and suffering.”