| 100% | YANGTZE | 7 | Longest river entirely within a single country |
| 55% | AARE | 4 | Longest river entirely within Switzerland |
| 55% | LENA | 4 | Longest river entirely within Russia |
| 55% | EBRO | 4 | Longest river entirely within Spain |
| 41% | INTRAMURAL | 10 | Within a single school |
| 41% | EBRO | 4 | 580 mile long river which is the longest that lies entirely within the nation of Spain |
| 41% | LOIRE | 5 | Longest river entirely in France |
| 41% | YAKIMA | 6 | Longest river entirely in Washington |
| 41% | AARE | 4 | Longest river entirely in Switzerland |
| 41% | EBRO | 4 | Longest river entirely in Spain |
| 41% | THAMES | 6 | Longest river entirely in England |
| 41% | AAR | 3 | Longest river entirely in Switzerland |
| 38% | LOIRE | 5 | Longest river completely within France |
| 37% | INTERNEE | 8 | Prisoner, especially one confined within a country |
| 36% | DOMESTIC | 8 | Type of flight within a country |
| 35% | CIVILWAR | 8 | Conflict within a country; Captain America film |
| 35% | EEL | 3 | Fish with a single long fin on top |
| 34% | NILE | 4 | Longest river in Africa that passes through Egypt and other countries |
| 33% | EEL | 3 | Fish that might have a single long fin on top |
| 33% | ARG | 3 | Country sharing a long border with Chile: Abbr. |
| 33% | CHILE | 5 | Country that shares a long border with Argentina |
| 33% | AUSTRALIA | 9 | Country whose longest river is the Murray |
| 32% | ARUBA | 5 | Caribbean country within a kingdom |
| 32% | EVESHAM | 7 | Market town in Worcestershire situated within a meander of the River Avon |
| 32% | LAOS | 4 | Country whose flag contains a symbol of the Mekong River |
| 32% | RANT | 4 | Long speech about a single topic |
| 31% | REP | 3 | Single curl within a set of bicep curls, say |
| 31% | EMS | 3 | River connected to a 165-mile long European canal |
| 31% | ROME | 4 | Only city that entirely surrounds a country |
| 31% | PLATTE | 6 | River paralleled by I-80 through a long stretch of the Plains |