The Collaborative International Dictionary of English v.0.48:

Divorce \Di*vorce"\, n. [F. divorce, L. divortium, fr.
   divortere, divertere, to turn different ways, to separate.
   See Divert.]
   1. (Law)
      (a) A legal dissolution of the marriage contract by a
          court or other body having competent authority. This
          is properly a divorce, and called, technically,
          divorce a vinculo matrimonii. "from the bond of
          matrimony."
      (b) The separation of a married woman from the bed and
          board of her husband -- divorce a mensa et toro (or a
          mensa et thoro), "from bed and board".
          [1913 Webster]

   2. The decree or writing by which marriage is dissolved.
      [1913 Webster]

   3. Separation; disunion of things closely united.
      [1913 Webster]

            To make divorce of their incorporate league. --Shak.
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   4. That which separates. [Obs.] --Shak.
      [1913 Webster]

   Bill of divorce. See under Bill.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Divorce \Di*vorce"\, v. t. [imp. & p. p. Divorced; p. pr. &
   vb. n. Divorcing.] [Cf. F. divorcer. See Divorce, n.]
   1. To dissolve the marriage contract of, either wholly or
      partially; to separate by divorce.
      [1913 Webster]

   2. To separate or disunite; to sunder.
      [1913 Webster]

            It [a word] was divorced from its old sense.
                                                  --Earle.
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   3. To make away; to put away.
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            Nothing but death
            Shall e'er divorce my dignities.      --Shak.
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WordNet (r) 3.0 (2006):

divorce
    n 1: the legal dissolution of a marriage [syn: divorce,
         divorcement]
    v 1: part; cease or break association with; "She disassociated
         herself from the organization when she found out the
         identity of the president" [syn: disassociate,
         dissociate, divorce, disunite, disjoint]
    2: get a divorce; formally terminate a marriage; "The couple
       divorced after only 6 months" [syn: divorce, split up]