1) name Hades or Pluto, the god of the lower regions
 2) Orcus, the nether world, the realm of the dead
 3) later use of this word: the grave, death, hell

 In Biblical Greek it is associated with Orcus, the infernal regions,
 a dark and dismal place in the very depths of the earth, the common
 receptacle of disembodied spirits. Usually Hades is just the abode of
 the wicked, #Lu 16:23; Re 20:13,14; a very uncomfortable place. TDNT.