Hell, Hades, infernal region, netherworld, Scheol, underworld(noun)

(religion) the world of the dead

"No one goes to Hades with all his immense wealth"-Theognis

netherworld(Noun)

The place to which one's spirit descends upon death, conceived as below the surface of the earth.

In some religions, one's soul departs to a netherworld, hell, instead of the heavens.

netherworld(Noun)

The locale of the spirit world or afterlife, whether deemed to be situated below the world of the living or not.

While I was astrally projecting, I felt my soul pass through many insubstantial netherworlds.

netherworld(Noun)

Specifically, a location of punishment in the afterlife; a hell.

The missionary was motivated by a sincere desire to rescue souls from eternal torment in the netherworld.

netherworld(Noun)

A hidden, shadowy, or sinister subculture, such as that of organized crime.

Richard had been initiated to the netherworld of dog racing by his father, and knew all the popular greyhound performance enhancing drugs.