The Collaborative International Dictionary of English v.0.48:

Abscond \Ab*scond"\, v. i. [imp. & p. p. Absconded; p. pr. &
   vb. n. Absconding.] [L. abscondere to hide; ab, abs +
   condere to lay up; con + d[a^]re (only in comp.) to put. Cf.
   Do.]
   1. To hide, withdraw, or be concealed.
      [1913 Webster]

            The marmot absconds all winter.       --Ray.
      [1913 Webster]

   2. To depart clandestinely; to steal off and secrete one's
      self; -- used especially of persons who withdraw to avoid
      a legal process; as, an absconding debtor.
      [1913 Webster]

            That very homesickness which, in regular armies,
            drives so many recruits to abscond.   --Macaulay.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Abscond \Ab*scond"\, v. t.
   To hide; to conceal. [Obs.] --Bentley.
   [1913 Webster]

WordNet (r) 3.0 (2006):

abscond
    v 1: run away; usually includes taking something or somebody
         along; "The thief made off with our silver"; "the
         accountant absconded with the cash from the safe" [syn:
         abscond, bolt, absquatulate, decamp, run off, go
         off, make off]

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "abscond":
   abandon, absquatulate, beat a retreat, bolt, bow out, break, bunk,
   clear out, cut and run, decamp, depart, desert, disappear, elope,
   evacuate, flee, fly, fugitate, go, go AWOL, jump, jump bail, leave,
   levant, make off, quit, remove, retire, retreat, run, run away,
   run away from, run away with, run for it, run off, scape,
   show the heels, skedaddle, skip, skip out, slip the cable,
   take French leave, take flight, take to flight, take wing,
   turn tail, vacate, vanish, withdraw



The Devil's Dictionary (1881-1906):

ABSCOND, v.i.  To "move in a mysterious way," commonly with the
property of another.

    Spring beckons!  All things to the call respond;
    The trees are leaving and cashiers abscond.
                                                             Phela Orm