The Chinese word "对称" (duìchèn), meaning "symmetry," is a compound formed by combining two characters, each contributing distinct semantic elements: "对" (duì) conveys the idea of "facing," "opposite," or "corresponding," while "称" (chèn) carries the meaning of "balanced," "fitting," or "proportionate." Together, they conceptually merge to depict a state where two sides correspond to and are balanced with each other, perfectly capturing the geometric and aesthetic principle of mirror-image equivalence. This formation follows a common pattern in Chinese where two logographic characters are joined to create a new, more specific abstract noun.