Chou Collection, Lower Volume Radical: Woman (nǚ) Kangxi stroke count: 8 Page 259, Entry 03 Ancient script According to Broad Rhymes (Guangyun), Rhyme Collection (Jiyun), and Collection of Rhymes (Yunhui), the pronunciation is si (falling tone). An elder brother’s wife is called si, while a younger brother’s wife is called di. The wives of brothers refer to one another as si. According to Approaches to Standardized Language (Erya), in the context of kinship: when women are married to the same husband, the one who married first is the si, and the one who married later is the di. Furthermore, an older woman refers to a younger woman as di-fu, and a younger woman refers to an older woman as si-fu. Furthermore, Tai Si was the consort of King Wen of Zhou and the daughter of the Youshen clan. Book of Odes (Shijing): Tai Si inherited these beautiful virtues. Furthermore, Bao Si was the queen of King You of Zhou. Minor Odes (Xiaoya): The illustrious Zhou dynasty, Bao Si caused its destruction. Note: Si is a surname, representing the descendants of Yu the Great of the Xia dynasty. There were also Si Fengming, Si Yongdao, and Si Ang during the Han dynasty. Furthermore, Zhang Heng's Ode on the Eastern Capital (Dongjing Fu): The residence of the Goddess of the Luo River, where spirits manifest to uphold the moral code. The dragon map was bestowed upon Fuxi, and the tortoise script was bestowed upon the Xia clan of Si. Note: Ji and Si both belong to the fourth tone category of the si rhyme. The Dictionary of Characters (Zihui) inaccurately suggests a variation in pronunciation here. Furthermore, Si possesses both a rising tone and a falling tone, though rhyme dictionaries often omit the record of the falling tone. The original character is written as a variant form (si).