The Collaborative International Dictionary of English v.0.48:

Sepulture \Sep"ul*ture\, n. [F. s['e]pulture, L. sepultura, fr.
   sepelire, sepultum, to bury.]
   1. The act of depositing the dead body of a human being in
      the grave; burial; interment.
      [1913 Webster]

            Where we may royal sepulture prepare. --Dryden.
      [1913 Webster]

   2. A sepulcher; a grave; a place of burial.
      [1913 Webster]

            Drunkeness that is the horrible sepulture of man's
            reason.                               --Chaucer.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sepulture
    n 1: the ritual placing of a corpse in a grave [syn: burial,
         entombment, inhumation, interment, sepulture]
    2: a chamber that is used as a grave [syn: burial chamber,
       sepulcher, sepulchre, sepulture]