Netherworlds, also known as the underworld or the abyss, can refer to a number of different places in mythology or popular culture. Synonyms for this term include the afterlife, the beyond, the land of the dead, the shades, the abyss, and the inferno. Other related words might include Hades (the realm of the dead in Greek mythology), purgatory (a place of temporary punishment or purification before entering heaven), or Tartarus (a deep, dark pit in Greek mythology that was used as a place of punishment for the wicked). Though these terms may have different connotations or meanings depending on the context, they all evoke a sense of mystery, unease, and a fascination with what lies beyond the veil of death.