皮球
pí qiú · HSK 6
ball
⚽🏀 皮球 = skin/leather + ball — a ball wrapped in rubber or leather skin
皮 means skin or hide, 球 means ball or sphere. A pí qiú is literally a skin-ball — any bouncy ball made from rubber or leather, like a basketball or soccer ball.
皮 — hand 又 stripping hide off animal
皮 is a pictograph showing a hand (又) peeling the skin or hide off an animal carcass. The original meaning was 'animal hide' or 'to flay,' which broadened over time to mean skin, leather, or any outer covering or surface.
球 — jade radical 玉/王 + qiu 求 (phonetic)
球 is a semantic-phonetic compound. The left side 王 is the 'jade' radical, indicating the original meaning: a fine piece of jade or a jade ornament. The right side 求 supplies the sound 'qiu'. Over time the meaning broadened from a jade sphere to any round object, and today it most commonly means 'ball' or 'globe'.