The word 机器人 (robot) is formed through a direct, conceptual assembly of its three component characters: 机 (machine), 器 (device), and 人 (person). It is not a grammatical phrase but a single compound noun built by sequentially stacking meanings to create a new idea. First, 机 establishes the core category of a machine; 器 then reinforces and specifies it as a mechanical device or tool; finally, 人 personifies it, defining the machine's purpose or form as human-like. Thus, the entire concept is visually and logically constructed from the ground up as a "machine-device-person".