noun
catacomb
KAT-uh-kohm/kˈætʌkˌoʊm/
A network of underground passages and chambers used for burials.
The catacomb has stacked burial niches along its vaulted corridor.

Etymology
The Latin ancestor originally named a particular area of underground tombs near Rome. Its use broadened to underground burial places generally; the proposed connection with a phrase meaning “at the graves” remains uncertain.
In context
the new catacomb in Rome which lies some distance to the east of the well-known vaults of St kius the finding of this important burial place
More examples
- Archaeologists map the catacomb beneath the ancient city.
- Visitors follow a guide through the catacombs.
- Narrow passages connect the burial chambers within the catacomb.
Forms
catacomb · catacombs