The Chinese word "圆圈" (yuánquān) is a compound noun formed through reduplication, where the core character "圆" (yuán), meaning "round" or "circle," is doubled. This construction is a common morphological process in Chinese where repeating a character creates a new word that emphasizes, intensifies, or specifies the original concept. In this case, while "圆" denotes the abstract shape or property of roundness, "圆圈" concretely refers to a physical or drawn circular ring, loop, or circle, thus moving from the adjective-like quality to a tangible noun. The repetition adds a sense of completeness and boundedness, perfectly encapsulating the idea of a closed, round figure.