wú chǔ
southern states of Wu and Chu
the middle and lower Yangtze valley
吴
wú
area comprising southern Jiangsu, northern Zhejiang and Shanghai
楚
chǔ
abbr. for Hubei 湖北省[Hu2 bei3 Sheng3] and Hunan 湖南省[Hu2 nan2 Sheng3] provinces together