It is the separation of life from the body. The inability of the body to function any longer. Dead. Gone. A corpse.

Edit:: To further expand on your poll options.

How can you determine death as the different levels of hell? Are you saying everyone is going to hell? As in there is no reason to believe in a religion any longer due to the fact that there is no god? Or would there have to be a god to have there be a hell? Which wouldn't that make there be a heaven which would make your poll an inaccurate way to portray this debate?

Funny questions you have there. Since Morals vary from place to place. So with one culture finding something acceptable and another culture finding something to be an abomination. I would need a better idea of what standard we are up holding for this debate to take any real grounds other than a religious belief battle. Versus something that is completely out there to begin with since this is more of a religious based debatable topic.