word | | Terrain |
| coral | American Samoa | five volcanic islands with rugged peaks and limited coastal plains, two coral atolls (Rose Island, Swains Island) |
| coral | Anguilla | flat and low-lying island of coral and limestone |
| coral | Antigua and Barbuda | mostly low-lying limestone and coral islands, with some higher volcanic areas |
| coral | Ashmore and Cartier Islands | low with sand and coral |
| coral | Bahamas, The | long, flat coral formations with some low rounded hills |
| coral | British Virgin Islands | coral islands relatively flat; volcanic islands steep, hilly |
| coral | Cayman Islands | low-lying limestone base surrounded by coral reefs |
| coral | Clipperton Island | coral atoll |
| coral | Cocos (Keeling) Islands | flat, low-lying coral atolls |
| coral | Cook Islands | low coral atolls in north; volcanic, hilly islands in south |
| coral | Coral Sea Islands | sand and coral reefs and islands (or cays) |
| coral | Guam | volcanic origin, surrounded by coral reefs; relatively flat coralline limestone plateau (source of most fresh water), with steep coastal cliffs and narrow coastal plains in north, low hills in center, mountains in ... |
| coral | Kiribati | mostly low-lying coral atolls surrounded by extensive reefs |
| coral | Marshall Islands | low coral limestone and sand islands |
| coral | Micronesia, Federated States of | islands vary geologically from high mountainous islands to low, coral atolls; volcanic outcroppings on Pohnpei, Kosrae, and Chuuk |