1) the death of the body

a) that separation (whether natural or violent) of the soul and the body by which the life on earth is ended

b) with the implied idea of future misery in hell

1) the power of death

c) since the nether world, the abode of the dead, was conceived as being very dark, it is equivalent to the region of thickest darkness i.e. figuratively, a region enveloped in the darkness of ignorance and sin

2) metaph., the loss of that life which alone is worthy of the name,

a) the misery of the soul arising from sin, which begins on earth but lasts and increases after the death of the body in hell

3) the miserable state of the wicked dead in hell

4) in the widest sense, death comprising all the miseries arising from sin, as well physical death as the loss of a life consecrated to God and blessed in him on earth, to be followed by wretchedness in hell