空 空 kōng Strokes8 Radical 穴 — cave, den, hole Made of 穴 cave, den, hole 工 labor, work How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation
间 间 jiān Strokes7 Radical 门 — gate, door, entrance, opening Made of 门 gate, door, entrance, opening 日 sun How it's builtIdeograph — the meaning is built from its parts Play the animation