United States, United States of America, America, US, U.S., USA, U.S.A.

North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776

• Union, North — the United States (especially the northern states during the American Civil War)
• Connecticut, Connecticut River — a river in the northeastern United States; flows south from northern New Hampshire along the border between New Hampshire and Vermont and through Massachusetts and Connecticut where it empties into Long Island Sound

• North American country, North American nation — a country on the North American continent

• American — a native or inhabitant of the United States

• American Civil War, War between the States — United States history: civil war between the North and the South; 1861-1865
• East, eastern United States — the region of the United States lying north of the Ohio River and east of the Mississippi River
• Midwest, Middle West — the north central region of the United States
• American state — one of the 50 states of the United States
• West, western United States — the region of the United States lying to the west of the Mississippi River
• Louisiana Purchase — territory in western United States purchased from France in 1803 for $15 million; extends from the Mississippi River to the Rocky Mountains and from the Gulf of Mexico to Canada
• Colony — one of the 13 British colonies that formed the original states of the United States
• New England — a region of northeastern United States comprising Maine and New Hampshire and Vermont and Massachusetts and Rhode Island and Connecticut
• Mid-Atlantic states — a region of the eastern United States comprising New York and New Jersey and Pennsylvania and Delaware and Maryland
• South — the region of the United States lying south of the Mason-Dixon line
• Sunbelt — states in the south and southwest that have a warm climate and tend to be politically conservative
• North — the region of the United States lying north of the Mason-Dixon line
• Dakota — the area of the states of North Dakota and South Dakota
• Alaska, Last Frontier, AK — a state in northwestern North America; the 49th state admitted to the union
• Arizona, Grand Canyon State, AZ — a state in southwestern United States; site of the Grand Canyon
• Arkansas, Land of Opportunity, AR — a state in south central United States; one of the Confederate states during the American Civil War
• California, Golden State, CA — a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes
• Colorado, Centennial State, CO — a state in west central United States in the Rocky Mountains
• District of Columbia, DC — the district occupied entirely by the city of Washington; chosen by George Washington as the site of the nation's capital and carve out of land ceded by Maryland and Virginia
• Georgia, Empire State of the South, Peach State, GA — a state in southeastern United States; one of the Confederate states during the American Civil War
• Hawaii, Aloha State, HI — a state in the United States in the central Pacific on the Hawaiian Islands
• Idaho, Gem State, ID — a state in the Rocky Mountains
• Kentucky, Bluegrass State, KY — a state in east central United States; one of the Confederate states during the American Civil War; famous for breeding race horses
• Montana, Treasure State, MT — a state in northwestern United States on the Canadian border
• Nevada, Silver State, Battle Born State, Sagebrush State, NV — a state in the western United States
• New Mexico, Land of Enchantment, NM — a state in southwestern United States on the Mexican border
• North Carolina, Old North State, Tar Heel State, NC — a state in southeastern United States; one of the original 13 colonies
• North Dakota, Peace Garden State, ND — a state of north central United States bordering on Canada
• Oklahoma, Sooner State, OK — a state in south central United States
• Oregon, Beaver State, OR — a state in northwestern United States on the Pacific
• South Carolina, Palmetto State, SC — a state in the Deep South; one of the original 13 colonies
• South Dakota, Coyote State, Mount Rushmore State, SD — a state in north central United States
• Tennessee, Volunteer State, TN — a state in east central United States
• Utah, Beehive State, Mormon State, UT — a state in the western United States; settled in 1847 by Mormons led by Brigham Young
• Virginia, Old Dominion, Old Dominion State, VA — a state in the eastern United States; one of the original 13 colonies; one of the Confederate States in the American Civil War
• Washington, Evergreen State, WA — a state in northwestern United States on the Pacific
• West Virginia, Mountain State, WV — a state in east central United States
• Wyoming, Equality State, WY — a state in the western United States; mountainous in the west and north with the Great Plains in the east
• Great Lakes — a group of 5 lakes in central North America
• Mississippi, Mississippi River — a major North American river and the chief river of the United States; rises in northern Minnesota and flows southward into the Gulf of Mexico
• Missouri, Missouri River — the longest river in the United States; arises in Montana and flows southeastward to become a tributary of the Mississippi at Saint Louis
• Niagara, Niagara River — a river flowing from Lake Erie into Lake Ontario; forms boundary between Ontario and New York
• Niobrara, Niobrara River — a tributary of the Missouri River
• Ohio, Ohio River — a river that is formed in western Pennsylvania and flows westward to become a tributary of the Mississippi River
• Pecos, Pecos River — a tributary of the Rio Grande
• Pee Dee, Pee Dee River — a North American River; flows to the Atlantic
• Red, Red River — a tributary of the Mississippi River
• Republican, Republican River — a tributary of the Kansas River
• Rio Grande, Rio Bravo — a North American river; boundary between the United States and Mexico; flows into Gulf of Mexico
• Saint Francis, Saint Francis River, St. Francis, St. Francis River — a tributary of the Mississippi River
• Saint Johns, Saint Johns River, St. Johns, St. Johns River — a North American river; flows into the Bay of Fundy
• Saint Lawrence, Saint Lawrence River, St. Lawrence, St. Lawrence River — a North American river; flows into the Gulf of Saint Lawrence and the North Atlantic
• Salmon, Salmon River — a tributary of the Snake River
• Snake, Snake River — a tributary of the Columbia River
• South Platte, South Platte River — a tributary of the Platte River
• Susquehanna, Susquehanna River — a river in the eastern United States that flows into Chesapeake Bay
• Tombigbee, Tombigbee River — a tributary of the Mobile River
• Twin, Twin Falls — a waterfall in the Snake River in southern Idaho
• Wabash, Wabash River — a tributary of the Ohio River
• White, White River — a tributary of the Mississippi River
• Wisconsin, Wisconsin River — a tributary of the Mississippi River
• Yellowstone, Yellowstone River — a tributary of the Missouri River
• Yosemite, Yosemite Falls — a series of waterfalls in Yosemite National Park in California; is reduced to a trickle for part of each year
• Yukon, Yukon River — a North American river; flows into the Bering Sea

• North Atlantic Treaty Organization, NATO — an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security
• Organization of American States, OAS — an association of countries in the western hemisphere; created in 1948 to promote military and economic and social and cultural cooperation

• North America — a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama