query: What is the primary language spoken in Laos?
passage: Lao language
Lao, sometimes referred to as Laotian (ລາວ 'Lao' or ພາສາລາວ 'Lao language') is a tonal language of the Kra–Dai language family. It is the official language of Laos, and it is also spoken in northeast Thailand, where it is usually referred to as the Isan language. A language of the ethnic Lao people, Lao serves as a lingua franca among all citizens of Laos. Approximately 90 different languages are spoken within its borders, many of which are unrelated to Lao.[5] Modern Lao (language) is heavily influenced by the Thai language. A vast number of technical terms as well as common usage are adopted directly from Thai.
passage: Isan language
The population of the region is predominately ethnic Lao and speakers of the Isan language, but the southern third has large minorities of Northern Khmer and Kuy, both Austroasiatic languages, and Khorat Thai, spoken in the mixed Thai, Lao and Khmer settlements of Nakhon Ratchasima Province, considered a dialect of Thai but noticeably influenced by Lao and Khmer. Although the overwhelming majority of the people are ethnic Isan, there are small pockets of other languages spoken in the region, such as the Austroasiatic Thavung, Nyah Kur (Eastern Mon), Bru and Mlabri and 'tribal' Tai languages such as Saek, Tai Dam, Nyaw, Phu Thai and Yoy languages. In addition, small communities of people speaking Central Thai, Chinese (mainly Teochew, Hokkien, Hainanese) and Vietnamese can also be found. The predominance of the Isan language in Isan is in stark contrast to the situation in Laos. Although the language enjoys official status and appears in writing, Lao speakers only make up half the population, and many Lao speakers are likely speakers of related Tai languages that use Lao as a second language. The Lao language is the primary language of riparian areas and most major cities, but is secondary to various Austroasiatic, tribal Tai-Kadai and Sino-Tibetan languages in the mountainous areas that cover most of the country.