abyss (n.)
- abysm
- arroyo
- benthos
- breach
- break
- canyon
- cavity
- chap
- chasm
- check
- chimney
- chink
- cleft
- col
- crack
- cranny
- crater
- crevasse
- crevice
- cut
- cwm
- deep
- deepness
- defile
- dell
- depth
- dig
- diggings
- dike
- ditch
- draw
- excavation
- fault
- fissure
- flaw
- flume
- fracture
- furrow
- gap
- gape
- gash
- gorge
- groove
- ground
- gulch
- gulf
- gully
- hades
- hole
- hollow
- incision
- inferno
- joint
- leak
- mine
- moat
- netherworld
- notch
- nullah
- opening
- pass
- passage
- perdition
- pit
- profoundness
- profundity
- quarry
- ravine
- rent
- rift
- rime
- rupture
- scissure
- seam
- shaft
- slit
- slot
- split
- trench
- underworld
- valley
- void
- wadi
- well
- workings
Into this wild abyss,
The womb of Nature and perhaps her grave.
