the abyss of hell, a bottomless pit in hell.

Hell, or a part of hell, conceived of as a subterranean region or dungeon; the underworld. Frequently with the.

= abyss, n. 1c. Now archaic and rare.

†the opening into hell (obsolete); (also) a dreary, oppressive, or unpleasant place; cf. sense A. 5b.

The great deep or bottomless gulf believed in old cosmogonies to lie beneath the earth; the infernal pit, the abode of the dead, hell. Cf. abysm, n.…

An abysm; a deep pit.

figurative. An abyss; the pit of hell. Now rare.

A pit, gulf. Hence. (earlier in English.) The abyss, hell.

a pit whose bottom cannot be seen or found; an abyss, hell; (in extended use) something which can never be filled or satisfied, or which is…

the ‘pit’ of Hell (cf. lake, n.4 3).