Noun:
* A thorough examination and repair of a complex mechanism or system. This can involve replacing worn-out parts, cleaning, adjusting, and testing.
* A complete reorganization or restructuring of something. This could be a business, a system, or even a personal life.
Verb:
* To examine and repair a complex mechanism or system thoroughly. This involves taking apart, cleaning, repairing, and reassembling the entire system.
* To make a complete reorganization or restructuring of something. This could involve changing policies, procedures, or even the structure of a business or organization.
Examples:
* Noun: The car needed a major overhaul after years of neglect.
* Verb: The company is overhauling its marketing strategy.
In both cases, the core idea is a complete and comprehensive process of examination, repair, and improvement.