The Collaborative International Dictionary of English v.0.48:

Rescind \Re*scind"\ (r?-s?nd"), v. t. [imp. & p. p. Rescinded;
   p. pr. & vb. n. Rescinding.] [L. rescindere, rescissum;
   pref re- re- + scindere to cut, split: cf. F. rescinder. See
   Shism.]
   1. To cut off; to abrogate; to annul.
      [1913 Webster]

            The blessed Jesus . . . did sacramentally rescind
            the impure relics of Adam and the contraction of
            evil customs.                         --Jer. Taylor.
      [1913 Webster]

   2. Specifically, to vacate or make void, as an act, by the
      enacting authority or by superior authority; to repeal;
      as, to rescind a law, a resolution, or a vote; to rescind
      a decree or a judgment.
      [1913 Webster]

   Syn: To revoke; repeal; abrogate; annul; recall; reverse;
        vacate; void.
        [1913 Webster]

WordNet (r) 3.0 (2006):

rescind
    v 1: cancel officially; "He revoked the ban on smoking"; "lift
         an embargo"; "vacate a death sentence" [syn: revoke,
         annul, lift, countermand, reverse, repeal,
         overturn, rescind, vacate]

Moby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "rescind":
   abbreviate, abolish, abridge, abrogate, annul, blot out,
   blue-pencil, bowdlerize, cancel, censor, countermand, counterorder,
   cross out, cut, delete, disannul, dismantle, do away with, edit,
   edit out, erase, expunge, expurgate, invalidate, kill, lift,
   make void, nullify, omit, override, overrule, recall, recant,
   renege, repeal, retract, reverse, revoke, rub out, set aside,
   strike, strike off, strike out, suspend, vacate, void, waive,
   withdraw, write off