ball, sphere, globe

球 is composed of the radical 玉 (jade) and 求 (request). 求 depicts multiple animal hairs gathered and linked together, forming a compact, rounded mass. Jade conveys the concept of flawless perfection, evoking a round shape free of sharp angles. Thus, 球 uses these components to represent a three-dimensional, perfectly round object where all points on the surface are equidistant from the center.