Gua·ra·ní also Gua·ra·ni 
(gwä′rə-nē)
(gwä′rə-nē)n. pl. Guaraní or Gua·ra·nís also Gua·ra·ni or Gua·ra·nis
1. A member of a South American Indian people of Paraguay, northern Argentina, and southern Brazil.
2. The Tupí-Guaraní language of this people.
[Spanish guaraní, of South American Indian origin.]