surname Si

wife or senior concubine of husbands older brother (old); elder sister (old)

strokes 7
strokes after radical 5
褒姒 褒姒 bao1 si4
Baosi, concubine of King You of Zhou 周幽王 and one of the famous Chinese beauties

娣姒 娣姒 di4 si4
sisters-in-law (old); various concubines of a husband (old)

姒文命 姒文命 si4 wen2 ming4
Si Wenming, personal name of Yu the Great 大禹