大江南北

north and south sides of the Yangtze River (idiom) / (fig.) all over China

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

surname Jiang

river / CL:條|条[tiao2],道[dao4]

south of Changjiang or Yangtze river / south of the lower reaches of Changjiang / often refers to south Jiangsu, south Anhui and north Zhejiang provinces / a province during Qing times / in literature, refers to the sunny south / Gangnam (district in Seoul, South Korea)

surname Nan

south

north and south / north to south

north / (classical) to be defeated