Tày language
Tai language of Vietnam

Tày is the major Tai language of Vietnam, spoken by more than a million Tày people in Northeastern Vietnam. It was formerly known as Thổ, a name now shared with the Cuối language.
Distribution
Vietnam: northern provinces (including Cao Bang Province and Quang Ninh Province)
Laos: northern region.
Tày is also spoken by emigrants in the Central highlands region of Vietnam (such as in Lam Dong Province).
There are also some Tày speakers in western countries. The region of Vietnam where Tày is spoken is bordered by China.
Varieties
Tày linguistic varieties include the following:
Tày Bảo Lạc – spoken in Bảo Lạc District, western Cao Bang province.
Tày Trùng Khánh – spoken in Trùng Khánh District, northeastern Cao Bang province.
Thu Lao or Dai Zhuang varieties are considered to be a different language.
Phonology
Consonants
The Cao Bẳng Tày dialect is the only variety to have the sounds /j w r ɣ b d bʲ/.
“Tày language” enters the record as tai language of Vietnam. Crown Archives preserves that source wording while asking what language and Vietnam can confirm, complicate or overturn.
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This entry incorporates text from “Tày language” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.