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.