Wu Chinese

Wu is a major group of Chinese languages spoken primarily in Shanghai, Zhejiang province, and parts of Jiangsu province, especially south of the Yangtze River, which make up the Wu cultural region. The Wu languages are at times simply called Shanghainese, especially when introduced to foreigners. The Suzhounese variety was the prestige dialect of Wu as of the 19th century, but had been replaced in status by Shanghainese by the turn of the 20th century, coinciding with a period of rapid language change in the city. The languages of Northern Wu constitute a language family and are mutually intelligible, while those of Southern Wu do not form a phylogenetic language family and are not mutually intelligible.

Historical linguists view Wu of great significance because of its obviously distinct nature. The Wu languages typically preserve all voiced initials of medieval Chinese, as well as the checked tone in the form of a glottal stop. Wu varieties also have noticeably unique morphological and syntactic innovations, as well as lexicon exclusively found in the Wu grouping. It is also of note that the influential linguist Chao Yuen Ren was a native speaker of Changzhounese, a variety of Northern Wu. The Wu varieties, especially that of Suzhou, are traditionally perceived as soft in the ears of speakers of both Wu and non-Wu languages, leading to the idiom "the tender speech of Wu" (吴侬软语; 吳儂軟語).