口 口 kǒu Strokes3 Radical 口 — mouth How it's builtPictograph — a drawing of the thing Play the animation
哨 哨 shào Strokes10 Radical 口 — mouth Made of 口 mouth 肖 to resemble, to look like How it's builtPhono-semantic — one part hints at the meaning, another at the sound Play the animation
儿 儿 ér Strokes2 Radical 儿 — son, child How it's builtPictograph — a drawing of the thing Play the animation More about the character 儿