overhaul

Universal Words noun, verb noun an examination of a machine or system, including doing repairs on it or making changes to it: a complete / major overhaul * A radical overhaul of the tax system is necessary. verb [VN] 1 to examine every part of a machine, system, etc. and make any necessary changes or repairs: The engine has been completely overhauled. 2 to come from behind a competitor and go past them SYNOVERTAKE: He managed to overhaul the leader on the final lap.