The word "颠倒" is formed through the combination of two near-identical semantic components to create an intensified meaning. Each character, "颠" (top; to fall) and "倒" (to fall over; to invert), independently conveys the core idea of being upside-down or reversed. By pairing them, the compound visually and conceptually mirrors its own meaning, it presents two elements that are essentially reflections of the same action, thereby reinforcing the complete and often chaotic sense of something being turned over, flipped, or fundamentally reversed. The formation is a direct, ideographic expression of inversion through duplicated imagery.