Cellar
Basement
cenotes
A large underground room used for ceremonies is often referred to as a crypt or a catacomb. These spaces are typically found beneath churches or other significant buildings and serve as burial sites or venues for religious ceremonies. They can also be used for special events, gatherings, or memorial services, providing a solemn and unique atmosphere.
I believe one of the answers to that would be a catacomb, like in Cask of Amontillado
No it is known as the underground railroad as it was hidden from sight
1: Underground
In Britain, an underground room is a cellar.
they call it that because it was underground and its was a rail road
Americans call them 'The Subway', the British call them 'The Underground' or 'The Tube'.
An underground room is a room that is located below ground level, typically beneath a house or building. These rooms can serve various purposes such as storage, wine cellar, storm shelter, or even as a hidden room.
The name given to the room beneath a house is called a basement.
underground , it is part of the underground railroad
Underground railways are known, in the USA, as the subway.
its a subterranean chamber ; a subterranean chamber is a underground room used to confuse robbers
Dungeon
An aquifer is an underground accumulation of water.
they don't
sewerage