The word 结构 is formed through the conceptual synthesis of its two constituent characters. The first character, 结 (jié), originally depicts silk threads tied together, conveying the core ideas of joining, connecting, or knotting. The second character, 构 (gòu), is based on the imagery of assembling wooden beams, carrying the meaning of constructing, framing, or building. When combined, the word visually and notionally merges these ideas: 结 provides the concept of interconnected parts and their relationships, while 构 provides the concept of an engineered framework or built form. The resulting compound thus intrinsically means the "connected framework" or the way parts are joined to form a complete, organized whole.