La Araucana is a term in Spanish that refers to the epic poem written by Alonso de Ercilla. The poem is a historical account of the Arauco War fought between the Mapuche people and the Spanish colonialists. While La Araucana is a popular title, there are many synonyms for the poem that people use interchangeably. Some of these synonyms include "La Conquista de Chile," "La Epopeya del Sur," "La Guerra de Arauco," and "La Gran Obra de America." All of these names have been used to refer to the epic poem and continue to be popular among Spanish-speaking people.