Shen Collection, Lower Volume
Radical: Clothing (yī)
Character: 衩
Kangxi strokes: 9
Page 1111, Entry 17
According to Tang Rhyme (Tangyun), Collected Rhymes (Jiyun), and Rhyme Compilation (Yunhui), it is pronounced chai (falling tone).
According to Jade Chapter (Yupian), it refers to a slit in a garment.
According to Extensive Records (Boya), a tucked-up hem is called a slit. It also refers to the area around the knees. It also refers to the slit in a skirt.
Li Shangyin’s poem states: The skirt slits are small like lotus flowers.
According to Sea of Characters (Pianhai), it refers to a garment being open or unfastened.
According to Classified Compilation (Leipian), it is pronounced cha (falling tone), sounding the same as the character for a river branch. The meaning is the same.