The Collaborative International Dictionary of English v.0.48:

Bereavement \Be*reave"ment\ (b[-e]*r[=e]v"ment), n.
   The state of being bereaved; deprivation; esp., the loss of a
   relative by death.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bereavement
    n 1: state of sorrow over the death or departure of a loved one
         [syn: mourning, bereavement]