say it: OH-vur-hawl
overhaul is a noun and verb meaning "periodic maintenance on a car or machine". It carries 4 recorded senses.
periodic maintenance on a car or machine
“it was time for an overhaul on the tractor”
the act of improving by renewing and restoring
“they are pursuing a general program of renovation to the entire property”
“a major overhaul of the healthcare system was proposed”
make repairs, renovations, revisions or adjustments to
“You should overhaul your car engine”
“overhaul the health care system”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for overhaul come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.