The Tucanoan languages are a family of indigenous languages spoken primarily in the northwestern region of the Amazon rainforest, particularly in Colombia and Brazil. This language family includes several languages, such as Tucano, Desano, and Tukano, which are used by various indigenous groups in the area. Tucanoan languages are known for their complex phonetic systems and rich grammatical structures. They often feature a system of noun classification and incorporate various prefixes and suffixes to convey different meanings. These languages play a crucial role in the cultural identity of the indigenous peoples who speak them.