The word "车轮" (chēlún), meaning "wheel" (specifically of a vehicle), is a typical Chinese compound noun formed through semantic combination. It follows a modifier-head structure where the first character "车" (chē), meaning "vehicle," acts as the modifier that specifies the category, and the second character "轮" (lún), meaning "wheel" or "round," functions as the head that denotes the core object. Therefore, the compound literally and logically translates to "vehicle-wheel," creating a clear, specific term for the wheel of a cart, car, or other conveyance.