Tags: Language.
Kaiwá is a Guarani language spoken by about 18000 Kaiwá people in Brazil in the state of Mato Grosso do Sul and 510 people in northeastern Argentina. Literacy is 5-10% in Kaiwá and 15–25% in Portuguese. Kaiwá proper is 70% lexically similar with the Pai Tavytera language and its similarity to its linguistic cousin Guaraní one of the two national-languages of Paraguay alongside the Spanish language means it is even sometimes considered mutually intelligible.