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It was superseded by the corresponding entry in the 15th edition (2005).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.
| Population | 20,000,000 to 25,000,000 in Thailand (1990 A. Diller), including 400,000 Khorat (1984), 4,704,000 mother tongue Thai speakers who are ethnic Chinese, or 80% of the Chinese (1984). Population total all countries 20,047,000 to 25,000,000. |
| Region | Central Thailand, centered in Bangkok. Khorat dialect in Ratchasima. Also spoken in Midway Islands, Singapore, UAE, USA. |
| Alternate names | CENTRAL TAI, STANDARD THAI, THAIKLANG, SIAMESE |
| Dialects | KHORAT THAI (KORAT). |
| Classification | Tai-Kadai, Kam-Tai, Be-Tai, Tai-Sek, Tai, Southwestern, East Central, Chiang Saeng. |
| Comments | People sometimes called 'Siamese.' Official language. Grammar. SVO. Thai script. Radio programs. Buddhist, Christian. Bible 1883-1990. |