Guiana is a region in South America that includes the countries of SURINAM, Guyana, and French Guiana. SURINAM, the seven-letter crossword solution for the term 'Guiana, ' is a country located on the northeastern coast of South America. It is bordered by the Atlantic Ocean to the north, Brazil to the south and west, and Guyana to the east. SURINAM is the smallest country in South America and is known for its diverse population and tropical rainforest.