कुंड (en. Cistern)

6 So they took Jeremiah and threw him into the cistern of Malchiah, the king’s son.

It incorporated a water course and an enormous concrete cistern (cuve) which would both relieve the pressure of the external groundwater on the basement walls and serve as a reservoir in case of fire.

This includes a Trombe wall, a ventilated concrete floor, a cistern, water wall or roof pond.

If you don’t know what a cistern is, it is a reservoir for storing water.

37:29 And Reuben, returning to the cistern, did not find the boy.

This includes a trombe wall, a ventilated concrete floor, a cistern, a water wall or a roof pond.

Don’t be worried though, the cistern is very well maintained and has been renovated often, so there are no safety issues.