xū
used in 顓頊|颛顼[Zhuan1 xu1]
surname Xu; Taiwan pr. [Xu4]; used in 頊頊|顼顼[xu1 xu1]; Taiwan pr. [xu4]
顼顼
xū xū
frustrated; disappointed
颛顼
zhuān xū
Zhuanxu, one of the Five Legendary Emperors 五帝[wu3 di4], grandson of the Yellow Emperor 黃帝|黄帝[Huang2 di4], trad. reigned 2513-2435 BC