Meaning of the word catacomb in English

What does catacomb mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

catacomb

US /ˈkæt̬.ə.kuːm/
UK /ˈkæt.ə.kuːm/
"catacomb" picture

Noun

an underground cemetery consisting of a subterranean gallery with recesses for tombs, as constructed by the ancient Romans

Example:
The tourists explored the ancient catacombs beneath the city of Rome.
The walls of the catacomb were lined with the remains of thousands of people.