The Chinese word **内涵 (nèihán)**, meaning "connotation" or "substance," is a compound term formed through the combination of two meaningful characters: **内 (nèi)**, which means "inside" or "internal," and **涵 (hán)**, which means "to contain," "to immerse," or "depth." Together, they create a metaphorical concept where **内** establishes the locus as that which is within or beneath the surface, and **涵** provides the notion of depth, containment, and implicit meaning. Thus, the word structurally and semantically conveys the idea of "internal containment," referring to the deep, implied meaning or inherent quality within something, as opposed to its superficial appearance.