| 100% | ULTRA | 5 | The U in UVA and UVB |
| 54% | OAS | 3 | The U.S. and Can. are in it |
| 52% | BARTENDER | 9 | In the US, drink mixer and server |
| 51% | ATWAR | 5 | Like the U.S. and Spain in 1898 |
| 51% | CONGRESS | 8 | In the US, the House and the Senate, collectively |
| 50% | OSAKA | 5 | Tennis player Naomi who won the US Open in 2018 and 2020 |
| 50% | UNITED | 6 | What the U.S. and U.K. have in common? |
| 50% | NIAGARA | 7 | Among the biggest waterfalls in US and Canada |
| 49% | DOLLAR | 6 | Currency in the US, Canada, and Australia |
| 48% | PAT | 3 | Rafter who won the US Open Men's Singles championship in 1997 and 1998 |
| 48% | PEROT | 5 | Ross —, candidate in the 1992 and 1996 US presidential elections |
| 48% | REDWOOD | 7 | Tallest tree in the world and a US National Park |
| 48% | MUSK | 4 | Oxen the US Fish and Wildlife Service brought to Alaska's Nunivak Island in 1935 |
| 48% | PARITY | 6 | What the U.S. and Canadian dollars had, roughly, in the early 2010s |
| 48% | UNIVERSAL | 9 | The U in USB |
| 48% | UNIT | 4 | The U in ICU |
| 48% | USER | 4 | The U in UX |
| 48% | UNITED | 6 | The U in UNCF |
| 48% | UTILITY | 7 | The U in "SUV" |
| 48% | USER | 4 | The U in EULA |
| 48% | SCOTTJOPLIN | 11 | US pianist and composer associated with the ragtime style who died in 1917 |
| 47% | BOONE | 5 | Name of eight counties in the central and eastern U.S. |
| 47% | RAINIER | 7 | Mount —, volcano and highest mountain in the state of Washington, US |
| 47% | FLAN | 4 | Dessert name that has different meanings in the UK and US |
| 47% | GHANA | 5 | Country that eliminated the U.S.A. in both the 2006 and 2010 FIFA World Cups |
| 47% | ATTU | 4 | The Battle of ___, a famed battle between U.S and Japanese forces in Alaska |
| 47% | TULSA | 5 | City and major oil centre in Oklahoma, US, on the Arkansas River |
| 47% | BOBBY | 5 | & 25A Golfer who won The Open Championship and US Open in 1930 |