43 Moby Thesaurus words for "catacombs":
   barrow, beehive tomb, bone house, box grave, burial,
   burial chamber, burial mound, cenotaph, charnel house, cist,
   cist grave, cromlech, crypt, deep six, dokhma, dolmen, grave,
   house of death, last home, long home, low green tent, low house,
   mastaba, mausoleum, monstrance, mummy chamber, narrow house,
   ossuarium, ossuary, passage grave, pit, pyramid, reliquary,
   resting place, sepulcher, shaft grave, shrine, stupa, tomb, tope,
   tower of silence, tumulus, vault