The Chinese word **确诊** is a compound verb formed through semantic combination, where the first character **确** means "confirmed" or "definite," and the second character **诊** means "diagnosis" or "to diagnose." Together, they create a precise term meaning "to confirm a diagnosis" or "to be diagnosed definitively," typically referring to the formal identification of a disease or medical condition, such as a positive test result for an illness. This structure follows a common pattern in Chinese where an adverb-like element (**确**) modifies and intensifies the action of the main verb (**诊**), resulting in a meaning that is more specific and conclusive than either character alone.