hypogeous Definition

underground, subterranean, underground railway, hypogeal, air shaft, storm cellar, epigeous, cyclone cellar, cavernicolous, subsurface, subterraneous, incaverned, overground, other world, envault, unburrow, stulm, fossorial, stone pit, diaclasis, incaved, subingression, stench trap, burial chamber, remblai, suspiral, tower of london, earthpea, tank farm, caponiere, natural depression, funk hole, aboveground, in secret, cesspipe, soil pipe, rabbit warren, rupestrian, vadose, cavelike, catchdrain, stational, clandestine, aquiferous, transportation system, cavernous, backstair, water gang, gas main, concameration, fallout shelter, atterrate, fire trench, conditory, subway station, city district, devaporation, abyssal zone, labyrinthic, gas system, sewage system, labyrinthical, back passage, storm door, untrenched, deterration, geological formation, psychrophyte, stalactite, drainage system, bivaulted, suillage, defensive structure, geoscopy, labyrinthiform, cable railway, prison cell, secret, molecast, traphole, solonchak, movable barrier, dungyard, bank vault, underdelve, humicubation, foralite, waste pipe, safe house, circumterraneous, clancular, caliduct, fairy circle, arenicolite, choke damp, chresard, trench mortar, subbasement, ablaqueate, attic,