Hades in WordNet English dictionary

1. (Greek mythology) the god of the underworld in ancient mythology; brother of Zeus and husband of Persephone
   Pluto  Hades  Aides  Aidoneus 
   
2. (religion) the world of the dead
   "No one goes to Hades with all his immense wealth"-Theognis
   Hell  Hades  infernal region  netherworld  Scheol  underworld