| 100% | IPODS | 5 | Touches are the only ones still produced |
| 59% | SEVENWONDERS | 12 | With 51-Across and 15-Down, group in which [see circled letters] is the only one still largely intact |
| 51% | DOESNTEVERYBODY | 15 | "I can't be the only one, right?" |
| 51% | YOUTOO | 6 | "And here I thought I was the only one" |
| 51% | STATE | 5 | Washington is the only one named for a president |
| 50% | BEARD | 5 | Dopey is the only one of the Seven Dwarfs without one |
| 50% | GRAPHICNOVEL | 12 | "Maus" is the only one to win a Pulitzer Prize (1992) |
| 49% | PHD | 3 | Wilson was the only president with one |
| 49% | ZEE | 3 | Arizona is the only state to have one |
| 49% | ANI | 3 | April is the only month that has one |
| 49% | BEARD | 5 | Dopey is the only Disney dwarf without one |
| 48% | AMI | 3 | "___ the only one who thinks this is a bad idea?" |
| 48% | AMI | 3 | "___ the only one who thinks this is funny?" (2 wds.) |
| 48% | TEE | 3 | August is the only month that ends with one |
| 47% | PATENT | 6 | Lincoln is the only U.S. president to have one |
| 47% | MBA | 3 | G.W. Bush is the only president who earned one |
| 47% | SUSPICION | 9 | 1941 Hitchcock film that was the only one he directed to win an acting Oscar |
| 47% | NEPAL | 5 | Its flag is the only non-rectangular one in the world |
| 47% | PHD | 3 | Woodrow Wilson is the only U.S. president to have one |
| 47% | PHD | 3 | Woodrow Wilson was the only U.S. prez to have one |
| 47% | PHD | 3 | Woodrow Wilson was the only U.S. president to have one |
| 47% | EMMY | 4 | Courteney Cox was the only "Friends" star who never got one |
| 47% | MOTTO | 5 | Montana is the only U.S. state with one in Spanish |
| 47% | MBA | 3 | Bush Jr. is the only U.S. president to hold one |
| 47% | ETHANE | 6 | The only hydrocarbon simpler than this one is methane |
| 46% | MBA | 3 | CFO's degree, maybe (Bush is the only president to have one) |
| 45% | EAR | 3 | A mantis is the only animal known to have just one of these |
| 45% | PENNA | 5 | Only one of the 13 Colonies not touching the Atl. Ocean |
| 45% | POLE | 4 | John Paul II has been the only pope that has been one of these |
| 45% | MBA | 3 | Pres. George W. Bush was the only president to hold one of these degs. |