The Chinese word 广告牌 (guǎnggàopái), meaning "billboard" or "advertisement board," is a compound noun formed through semantic combination. It consists of two distinct elements: 广告 (guǎnggào), meaning "advertisement," which itself is a compound of 广 (to broaden) and 告 (to announce), and 牌 (pái), meaning "board," "plate," or "sign." The structure follows a modifier-head pattern common in Chinese, where the descriptive element 广告 ("advertisement") modifies the core noun 牌 ("board") to specify the type of board, resulting in the clear and logical meaning of "a board for advertisements."