The following is the entry for this language as it appeared in the 14th edition (2000).
It was superseded by the corresponding entry in the 15th edition (2005). See also the corresponding entry in the current edition of Ethnologue.
SIL code: TTS
ISO 639-2: tai
| Population | 15,000,000 (1983 SIL) to 23,000,000 including Lao, at least 1,000,000 in Bangkok. Kalerng has a few thousand speakers (1990 A. Diller ANU). |
| Region | Northeastern; 17 provinces. Kalerng is in Sakon Nakhon and Nakhon Phanom. |
| Alternate names | ISAN, ISAAN, ISSAN |
| Dialects | NORTHERN ISAN, CENTRAL ISAN (KALERNG, KALEUNG), SOUTHERN ISAN, KORAT. |
| Classification | Tai-Kadai, Kam-Tai, Be-Tai, Tai-Sek, Tai, Southwestern, East Central, Lao-Phutai. |
| Comments | The Korat dialect is quite different, and may be a separate language. 88% use Isan in the home, 1% use Central Thai, 11% use both. The people are called 'Isan.' Investigation needed: intelligibility with Korat. SVO. Thai script used. Buddhist. |
