Death (title)

Death is a title used by individuals who bear Death's ring and make use of its powers.

Overview
The original Death was the only one to hold this title. As a primordial entity and the reapers' superior, this position afforded him both the respect and fear of all other life forms.

When the original Death gave his ring to Dean for a bet, Dean took to calling himself "Death". Once the original Death was killed by Dean and the reaper Billie died, she became the new Death.