The term 'CHECKED OUT THOROUGHLY' can be summarized by the word 'VETTED', which is a 6-letter word. Vetting is a process of thoroughly examining something or someone in order to verify their suitability for a certain purpose. It is commonly used in the context of job applications, where employers will vet potential employees to ensure they are qualified and suitable for the role. Vetting can also be used to refer to the process of examining a product or service to ensure it meets certain standards.