密 密 mì Strokes11 Radical 宀 — roof Made of 宓 quiet, silent, still 山 mountain, hill, peak How it's builtIdeograph — the meaning is built from its parts Play the animation
码 码 mǎ Strokes8 Radical 石 — stone, rock, mineral Made of 石 stone, rock, mineral 马 horse How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation More about the character 码