overhaul

Short definition from Wiktionary

Noun

1. 1
   A major repair, renovation, or revision.
2. 2
   The process after the fire appears extinguished in which the firefighters search the structure for signs of hot spots that may cause the structure to reignite.

Verb

1. 1
   To modernize, repair, renovate, or revise completely.
2. 2
   To pass, overtake, or travel past.
3. 3
   To keep (running rigging) clear, and see that no hitch occurs.
4. 4
   To search (a ship) for contraband goods.