The crossword solution for the term 'Neighbor of Chile' is Peru, which is a 4-letter word. Peru is a country located in western South America, bordered by Ecuador and Colombia to the north, Brazil to the east, Bolivia to the southeast, Chile to the south, and the Pacific Ocean to the west. It is the third largest country in South America and has a population of over 32 million people. Peru is one of Chile's closest neighbors, sharing a border with the country to the north.