IPA: /ˌuːbliˈɛt/
KK: /ub-li-ˈet/
A type of dungeon that has a trapdoor at the top, making it difficult to escape from.
The prisoner was thrown into the oubliette, where he could not escape.
**Oubliette** → The word comes from the Old French *oubliette*, derived from *oublier* (meaning to forget). An oubliette is a type of dungeon or cell that is designed to be forgotten, emphasizing the aspect of being left in obscurity or neglect.
Imagine a hidden place where someone is 'forgotten' ('oublier') — that's what an oubliette is, a dungeon meant to be left out of memory.