The word "Columbias" can refer to the plural form of Columbia, the Latinized version of Christopher Columbus' last name, or it can refer to the plural form of Columbia, the name of a country in South America. Some synonyms for the term "Columbias" could include the Americas, the New World, the West, the United States, or South America, depending on the context. If the reference is specifically to the country of Colombia, some potential synonyms might include Bogota, Medellin, Cartagena, or the Andean nation. Essentially, the synonyms for "Columbias" will vary depending on the specific meaning and context of the term.