The Chinese word "追踪" is formed through the logical combination of two pictographic and ideographic characters to create a unified concept. The first character, "追" (zhuī), inherently means "to chase" or "to pursue", visually and conceptually capturing the action of following behind someone. It is paired with "踪" (zōng), which specifically means "track", "trace", or "footprint". Thus, the compound does not merely join two similar ideas; it sequentially constructs a complete scene: "追" provides the active verb of pursuit, while "踪" supplies the critical object, the physical evidence or path that makes the pursuit possible. The formation visually and semantically moves from the action to the specific target of that action, synthesizing into the single, coherent meaning of "to track" or "to trace".