overhaul /ˌəʊvəˈhɔːl/verb 5/ˈəʊvəˌhɔːl/ noun 2forms 3 verb5 •To modernize, repair, renovate, or revise completely.While the engines are dealt with in the diesel shop, their parent locomotives are overhauled in the erecting shop. — 1961 •To carry out an overhaul. •To pass, overtake, or travel past. •To search (a ship) for contraband goods. •To keep (running rigging) clear, and see that no hitch occurs. overhaul /ˈəʊvəˌhɔːl/ noun2 •A major repair, renovation, or revision.The engine required a complete overhaul to run properly. •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. formsoverhauled · overhauling · overhauls