Wu Hu (five tribes that migrated into China in 300-500 CE: Xiongnu, Jie, Xianbei, Di, Qiang)
 ten;  10; (arch.)  book containing a collection of poems
 the Six Kingdoms (of China's Warring States period: Qi, Chu, Yan, Han, Wei and Zhao);  the six tree-derived incense varieties used in kōdō ceremonies