The Hui (徽) dialects are unrelated to the Hui (回) ethnic group of China.

Hui, or Hui-yu (Simplified Chinese: 徽语; Traditional Chinese: 徽語; Hanyu Pinyin: Huīyǔ), or Huizhou-hua (Simplified Chinese: 徽州话; Traditional Chinese: 徽州話; Hanyu Pinyin: Huīzhōuhuà), is a subdivision of spoken Chinese. Its exact status is greatly disputed among linguists. Some prefer to classify it under Wu, others prefer to classify it under Gan, still others set it apart as an independent branch.

Hui is spoken over a small area compared to other Chinese varieties: about ten or so mountainous counties in southern Anhui, plus a few more in neighbouring Zhejiang and Jiangxi. Despite its small size, Hui displays a very high degree of internal variation. Nearly every county has its own distinct dialect unintelligible to a speaker a few counties away. It is for this reason that bilingualism and multilingualism are common among speakers of Hui.

Like all other varieties of Chinese, there is plenty of dispute as to whether Hui is a language or a dialect. See here for the issues surrounding this dispute.

Dialects

Hui can be divided into five dialects:

• Jixi-Shexian, spoken in Jixi , She County , Huizhou , Jingde , and Ningguo , Anhui province, as well as Chun'an , Zhejiang province
• Xiuning-Yixian, spoken in Tunxi , Taiping , Xiuning , Yi County , and Qimen , as well as Wuyuan , Jiangxi province
• Qimen-Dexing, spoken in Qimen and Dongzhi , Anhui province, as well as Fuliang , Dexing , and Wuyuan , Jiangxi province
• Yanzhou, spoken in Chun'an and Jiande , Zhejiang province
• Jingde-Zhanda, spoken in Jingde , Qimen , Shitai , Yi County , and Ningguo , Anhui province

Features

Phonologically speaking, Hui is noted for its massive loss of codas, including -i, -u, and nasals:

Character	Meaning	Hui of Tunxi	Mandarin of Beijing
燒	burn	ɕiɔ	ʂɑu
柴	firewood	sa	tʂʰai
綫	line	siːɛ	ɕiɛn
張	sheet	tɕiau	tʂɑŋ
網	web	mau	wɑŋ
檻	threshold	kʰɔ	kʰan

Many dialects of Hui have diphthongs with a higher, lengthened first part. For example, 話 "speech" is /uːɜ/ in Xiuning County (Putonghua /xuɑ/), 園 "yard" is /yːɛ/ in Xiuning County (Putonghua /yɛn/); 結 "knot" is /tɕiːaʔ/ in Yi County (Putonghua / tɕiɛ/), 約 "agreement" is /iːuʔ/ in Yi County (Putonghua /yɛ/). A few areas take this to extremes. For example, Likou in Qimen County has /fũːmɛ̃/ for 飯 "rice" (Putonghua /fan/), with the /m/ appearing directly as a result of the lengthened, nasalized /ũː/.

Because nasal codas have mostly dropped off, Hui reuses the /-n/ ending as a diminutive. For example, in the Tunxi dialect , there is 索 "rope" /soːn/ < /soʔ/ + /-n/.