The word **砖头** is a standard Mandarin noun meaning "brick," and its formation is a straightforward example of Chinese compound word structure. It consists of two characters: **砖** (*zhuān*), which is the core morpheme meaning "brick" or "tile," and **头** (*tou*), which here functions as a nominal suffix. This suffix **头** often attaches to concrete nouns, adding a sense of a solid, physical object or a tool, and in this case, it does not significantly alter the core meaning of "砖" but instead solidifies it as a common, tangible item. Therefore, the compound is a modifier-head structure where the suffix **头** grammatically completes and nominalizes the root, resulting in a common, everyday term for a brick.