Western Siouan languages
The Western Siouan languages, also called Siouan proper or simply Siouan, are a large language family native to North America. They are closely related to the Catawban languages, sometimes called Eastern Siouan, and together with them constitute the Siouan (Siouan–Catawban) language family.
Demographics of Laos
The official and dominant language is Lao, a tonal language of the Tai linguistic group. Midslope and highland Lao speak tribal languages. French, once common in government and commerce, has declined in use, while knowledge of English — the language of the Association of Southeast Asian Nations (ASEAN) — has increased in recent years.