唇
くちびる · kuchibiru · JLPT N2 · noun
lip
👄 唇 = 辰 (shin) + 口 (mouth): the 口 at the bottom marks it as a part of the mouth
The kanji 唇 has 辰 (shin, the sound part) on top and 口 (mouth radical) below. The mouth radical signals a body part of the mouth, and kuchibiru starts with kuchi (mouth), the same root.