How to Write 膀 (bǎng) — Meaning “upper arm / shoulder / wing”

Imagine a bird spreading its wings: the left side is the body (月), and the right side 旁 looks like a wing extended to the side. This reminds you that 膀 means wing or upper arm, like in 翅膀 (chì bǎng, wing).

The left radical 月 must be written narrow, not wide like the moon radical, and the right part 旁 has a dot (丶) on top of 方. A common mistake is forgetting the top dot or making the 月 too wide, which ruins the balance of the character.

Although they all share the right-side component 月, 膀 has the flesh radical 月 on the left, while 朝 has 月 on the bottom-right and 期 has 月 on the right. Their meanings are completely different: 朝 means morning or dynasty, and 期 means time period or date.

The character 膀 appears in common words like 肩膀 (jiān bǎng, shoulder) and 翅膀 (chì bǎng, wing). You use it when talking about body parts of humans or animals, especially in everyday conversation or stories about birds.

Common words containing 膀 include: 肩膀 (jiān bǎng) — shoulder; 翅膀 (chì bǎng) — wing; 膀子 (bǎng zi) — upper arm / shoulder.