肺
fèi · HSK 6
lung
🫁 肉 (flesh radical) + 巿 phonetic — the flesh organ that breathes
The 月 on the left is the flesh/body radical found in most organ characters (肝 liver, 肠 intestine). The right side 巿 hints at the old pronunciation. So 肺 = body-part for breathing = lung.
肺 — flesh radical 月(肉) + 巿 fú phonetic
肺 is a semantic-phonetic compound. The left side 月 is the 'flesh/meat' radical (肉), marking it as a body organ, while the right side 巿 (fú) once hinted at the pronunciation. The character has meant 'lungs' since early Chinese medical texts.