The Chinese word **楼层** (lóucéng), meaning "floor" or "story" (of a building), is a compound noun formed through a straightforward and common semantic combination. It consists of two characters: **楼** (lóu), which means "building" or "multi-storied house," and **层** (céng), which means "layer" or "stratum." When combined, the first character **楼** specifies the domain (a building), and the second character **层** specifies a horizontal division within that domain. Thus, the compound literally translates to "building layer," logically and efficiently conveying the concept of one level or story within a multi-level structure.