How to Write 腓 (féi) — Meaning “Calf (of the leg)”

Imagine that your calf muscle is shaped like a pair of wings — the left part 月 (flesh) and the right part 非 looks like two overlapping wings. Think: "My calf (腓) is not (非) weak flesh; it helps me fly!" The component 非 means 'not' or 'wrong' but here it's just a phonetic hint.

Start with the left radical 月, which is narrower than the right part. Then write 非 on the right — note that 非 has five strokes per side, with the left side slightly smaller than the right. A common mistake is making the left and right sides equal in width; instead, the right should be wider. Also, do not confuse the bottom horizontal of 月 with the first stroke of 非.

腓 (féi) means 'calf' and uses the body radical 月 on the left. 朔 (shuò) means 'new moon' and has the radical 月 on the left, but the right side is 屰 (upside-down person). 朕 (zhèn) is an old word for 'I' or 'we' and has the radical 月 on the left but the right side is 关 (or 灷). The right-side components are completely different, so focus on the part after 月 to tell them apart.

腓 is not common in daily conversation but appears in medical or anatomical terms like 腓骨 (fibula) and 腓肠肌 (gastrocnemius muscle). You might see it in sports injury reports or biology textbooks. There is also the idiom 腓无肢 (meaning 'without support'), but it is rare. Knowing this character helps you understand leg anatomy in Chinese.

Common words containing 腓 include: 腓骨 (féi gǔ) — Fibula; 腓肠肌 (féi cháng jī) — Gastrocnemius (calf muscle); 腓侧 (féi cè) — Fibular side.