'Dungeon' in the Bible

He, having received such a [strict] command, threw them into the inner prison (dungeon) and fastened their feet in the stocks [in an agonizing position].

and after he brought them out [of the inner prison], he said, “Sirs, what must I do to be saved?”

And he shouted with a mighty voice, saying, “Fallen, fallen [certainly to be destroyed] is Babylon the great! She has become a dwelling place for demons, a dungeon haunted by every unclean spirit, and a prison for every unclean and loathsome bird.