The Collaborative International Dictionary of English v.0.48:

Expunge \Ex*punge"\ ([e^]ks*p[u^]nj"), v. t. [imp. & p. p.
   Expunged ([e^]ks*p[u^]njd"); p. pr. & vb. n. Expunging
   ([e^]ks*p[u^]n"j[i^]ng).] [L. expungere, expunctum, prick
   out, expunge, settle an account, execute; ex out + pungere to
   prick, puncture. See Pungent.]
   1. To blot out, as with pen; to rub out; to efface
      designedly; to obliterate; to strike out wholly; as, to
      expunge words, lines, or sentences.
      [1913 Webster]

   2. To strike out; to wipe out or destroy; to annihilate; as,
      to expunge an offense. --Sandys.
      [1913 Webster]

            Expunge the whole, or lop th' excrescent parts.
                                                  --Pope.

   Syn: To efface; erase; obliterate; strike out; destroy;
        annihilate; cancel.
        [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "expunged":
   SOL, all bets off, all off, all over, all up, at an end, canceled,
   complete, concluded, dead, decided, defunct, deleted, done,
   done for, done with, ended, extinct, fini, finished, kaput, over,
   perfected, set at rest, settled, shot, terminated, through,
   through with, washed up, wiped out, wound up, zapped