Synonyms and related words :
Abaddon, Gehenna, Hades, Naraka, Pandemonium, Sheol, Tophet, avichi, cage, coop, enclosure, hell, in abeyance, infernal regions, inferno, jahannan, lower world, nether world, on the shelf, pen, penfold, perdition, pinfold, place of confinement, place of torment, pound, purgatory, shades below, suspended, the abyss, the bottomless pit, the grave, the pit, treading water, underworld