The Chinese word **水源** (shuǐyuán) is a compound noun formed through a straightforward and common grammatical structure known as a **modifier-head** or **endocentric** construction. It combines the character **水** (shuǐ), meaning "water," which acts as the modifier, with the character **源** (yuán), meaning "source" or "origin," which acts as the core semantic head. Therefore, the term literally and logically means "the source of water," referring to a place or point from which water originates, such as a spring, well, or headwater, and by extension can signify a water supply in a broader context.