The Collaborative International Dictionary of English v.0.48:

Repossession \Re`pos*ses"sion\ (r?`p?z-z?sh"?n or -p?s s?sh"?n),
   n.
   The act or the state of possessing again.
   [1913 Webster]

WordNet (r) 3.0 (2006):

repossession
    n 1: the action of regaining possession (especially the seizure
         of collateral securing a loan that is in default)

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "repossession":
   disendowment, disherison, disinheritance, disownment,
   dispossession, disseisin, eviction, expropriation, foreclosure,
   ransom, recapture, reclaiming, reclamation, recoup, recoupment,
   recovery, recuperation, redemption, regainment, reoccupation,
   replevin, replevy, repossessing, restoration, resumption, retake,
   retaking, retrieval, retrieve, revindication, revival, salvage,
   trover