abysses, abyssal, heights, fathoms, abyss, beneath, breadths, mire, snailfish, nadir, extents, seafloor, bathysphere, cavern, carboniferous, lows, deeps, surface, dredges, evaporite, underwater, subsurface, dolerite, copepod, briney, extremes, anticlines, porosities, sea, crevasses, submersible, cavelike, murk, turonian, mineshaft, burrow, lineaments, bathyscaphe, tubeworm, phanerozoic, benthos, dimensions, depravity, permeabilities, spelunk, laptev sea, undercurrents, semidarkness, convolutions, precipices, earthwards, pinnacles, potholing, shallowness, cenote, wretchedness, silurian, despair, waters, winze, substrata, sinks, zenith, netherworld, pestilences, shoals, hadean, thermocline, muck, boundlessness, altitudes, claystone, outwash, cretaceous, crevices, limitlessness, cesspit, feet, seabeds, asthenosphere, zechstein, underbelly, oligocene epoch, despond, embayment, bedrock, lower carboniferous, brachiopods, morass, recesses, icecap, sargasso sea, depositional, triassic, desolation, rockface, ocean, enveloping, dives, outcrops, graben, thicknesses, depth, caverns, reaches, profundity, distances, hollows, intensities, lengths, cave, gulfs, chasms, darkness

., abyssal, acheronian, aphotic, bathyal, bathymetric, bathymetrical, bathymetry, depth, dragnet, dwarf, gnome, japan trench, measurable, nereus, plumbing, profound, the pit, trawl, trawl net, unplumbed