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.
Bidayuh
The Serian Bidayuhs have a distinct dialect known as the "Bukar & Sadong language" Bidayuh, which is not intelligible to Bidayuhs from other Districts. Here are some examples of the differences in the various dialects spoken in Serian, with their English and Malay equivalents. Also included are two Philippine languages, Kapampangan and Tagalog: