孔

An opening, aperture, or vent (e.g., pores in skin, perforations in fabric, finger-holes on a flute). Also used as an intensifier meaning "very," "quite," or "greatly."

When used as a degree modifier, it typically precedes an adjective and is synonymous with 甚 or 頗.

Determine whether the syntax requires a noun (physical gap) or a modifier for a following quality. In technical contexts—such as anatomy, music, or craftsmanship—the "aperture" sense usually refers to a functional bore or vent. Avoid instinctively reading the glyph as a proper name unless it is paired with 子 or appears in a clear biographical context.