About
As a phono-semantic compound, 窾 is structured with the semantic radical 穴 (cave, hole) at the top, which categorizes it within the domain of spaces and excavations. The lower part functions as the phonetic component, derived from forms of the character 款. Its primary meaning conveys hollowness or emptiness, often referring to a physical cavity within an object, such as a hole in wood or an architectural void. The upper radical visually establishes the notion of an enclosed space, while the lower element determines its pronunciation.