bottomless pit (?.)
- Abaddon
- Gehenna
- Hades
- Naraka
- Pandemonium
- Sheol
- Tophet
- avichi
- bowels
- deep space
- deeps
- depths
- gaping depths
- hell
- infernal pit
- infernal regions
- inferno
- jahannan
- limbo
- lower world
- nether world
- outer space
- perdition
- place of torment
- purgatory
- shades below
- the abyss
- the bottomless pit
- the grave
- the pit
- underworld
- unfathomed deeps
- unknown depths