Synonyms and related words :
Augean stables, Hydra, abri, antre, bunker, burrow, cave, cavern, cove, dugout, dump, foxhole, grot, grotto, hole, hotbed, hovel, lair, milk cow, mustard, pesthole, pigpen, pigsty, plague spot, rabbit, rich soil, rookery, seed plot, sewer, slum, stable, sty, subterrane, subway, tenement, the slums, tunnel