rebuilding

verb

1. (form-of, gerund, participle, present)present participle and gerund of rebuild

noun

1. The act of building something again.

   “The complete 1892 rebuilding, indeed, followed an accident in 1890, when No. 6 ran away down the Buckley branch, and got badly smashed up in a collision at Connah's Quay.”

   “These have certainly witnessed many events of interest, chief among them, undoubtedly, being the rebuilding of the Bulleid Pacifics.”