The word "烧毁" is formed through a logical semantic combination where the first character, 烧 (shāo), means "to burn", and establishes the primary action. The second character, 毁 (huǐ), means "to destroy" or "to ruin", and directly specifies the destructive result of that action. Therefore, the compound naturally conveys the complete, cause-and-effect concept of "to burn down" or "to destroy by fire", where the process and its definitive outcome are fused into a single idea.