- 闰 閏 run4
- intercalary; an extra day or month inserted into the lunar or solar calendar (such as February 29)
| strokes | 12 |
|---|---|
| radical | |
| strokes after radical | 4 |
- 敖闰 敖閏 ao2 run4
- Dragon King of the West Sea, Ao Run, also Ao Ji (敖吉)
- 闰年 閏年 run4 nian2
- leap year; (lunar calendar) year with a thirteen intercalary month
- 闰月 閏月 run4 yue4
- intercalary month in the lunar calendar; leap month