repeal
     n : the act of abrogating; an official or legal cancellation
         [syn: {abrogation}, {annulment}]
     v : annul by recalling or rescinding; "He revoked the ban on
         smoking"; "lift an embargo"; "vacate a death sentence"
         [syn: {revoke}, {annul}, {lift}, {countermand}, {reverse},
          {overturn}, {rescind}, {vacate}]
Source: WordNet® 2.0