From Old English [Term?], from Late Latin catacumbas, name of the underground cemetery of St. Sebastian in Rome, dissimilation of Latin cata- (“among”) (from Ancient Greek κατά (katá, “under”)) + tumbas (from Ancient Greek τύμβος (túmbos, “swell”)).
- (UK) IPA(key): /ˈkatəˌkəʊm/ (less commonly) IPA(key): /ˈkatəkuːm/
- (US) IPA(key): /ˈkætakoʊm/, /ˈkætəkuːm/
catacomb (plural catacombs)
- (often plural) An underground system of tunnels and chambers with recesses for graves, used (in former times) as a cemetery; a tunnel system used for burying the dead, as in Paris or Ancient Rome.