WordNet (r) 3.0 (2006):

rebuilding
    n 1: building again

Moby Thesaurus II by Grady Ward, 1.0:

35 Moby Thesaurus words for "rebuilding":
   copy, duplication, imitation, palingenesis, re-creation,
   re-formation, reassembling, reassembly, rebirth, reconstitution,
   reconstruction, redesign, redoing, reedition, reestablishment,
   refabrication, refashioning, regeneration, regenesis,
   reinstitution, reissue, remaking, remodeling, renascence,
   renovation, reorganization, repetition, reprinting, reproduction,
   reshaping, restoration, restructuring, resurrection, revision,
   revival