derivations from collective common nouns such as "kingdom", "republic", "union", etc.: the Central African Republic, the Dominican Republic, the United States, the United Kingdom, the Soviet Union, the United Arab Emirates, including most country full names:[8][9] the Czech Republic (but Czechia), the Russian Federation (but Russia), the Principality of Monaco (but Monaco), the State of Israel (but Israel) and the Commonwealth of Australia (but Australia).[10][11][12] countries in a plural noun: the Netherlands, the Falkland Islands, the Faroe Islands, the Cayman Islands, the Philippines, the Comoros, the Maldives, the Seychelles, Saint Vincent and the Grenadines, and The Bahamas. Singular derivations from "island" or "land" that hold administrative rights – Greenland, England, Christmas Island and Norfolk Island – do not take a "the" definite article. derivations from mountain ranges, rivers, deserts, etc., are sometimes used with an article, even for singular, (the Lebanon, the Sudan, the Yukon, the Congo).[13] This usage is in decline, The Gambia remains recommended whereas use of the Argentine for Argentina is considered old-fashioned. Ukraine is occasionally referred to as the Ukraine, a usage that was common during the 20th Century, possibly originating with Ukrainian immigrant scholars not fluent in English referring to the country as so.[14] Sudan (but the Republic of the Sudan) and South Sudan (but the Republic of South Sudan) are written nowadays without the article.