crypt
nounUK /krɪpt/
US /krɪpt/
A secret room under a church or building where people are buried.
The old church has a dark crypt beneath the floor.
OTHER MEANINGS
2. A hidden underground room used for storage or secret activities.
The spies met in a crypt below the abandoned house.
3. A small pit or gland in the body, such as in the throat.
The doctor explained how the tonsillar crypt can trap bacteria.
4. A secret code or hidden writing system.
The detective tried to break the crypt used in the letter.