Google defines the term �death� to be �the action or fact of dying or being killed; the end of the life of a person or organism.�
Death is something that can be scientifically looked at like the clinical definition given above or looked at from a religious aspect. Every religion, in fact, has its own version of death.
The common thread that links them together is that there always exists a being that extracts one�s soul. This varies from Grim Reaper to Yam Raj to Thanatos and so on. Here, death�s link with the soul also ultimately connects it with the notion of heaven and hell.