decease
     n : the event of dying or departure from life; "her death came
         as a terrible shock"; "upon your decease the capital will
         pass to your grandchildren" [syn: {death}] [ant: {birth}]
     v : pass from physical life and lose all all bodily attributes
         and functions necessary to sustain life; "She died from
         cancer"; "They children perished in the fire"; "The
         patient went peacefully" [syn: {die}, {perish}, {go}, {exit},
          {pass away}, {expire}, {pass}] [ant: {be born}]
Source: WordNet® 2.0