| 100% | IPV | 3 | Vaccine for prevention of polio (abbr.) |
| 50% | MMR | 3 | Vaccine for kids: Abbr. |
| 45% | SALK | 4 | Scientist Jonas who developed a vaccine for polio |
| 45% | JONASSALK | 9 | Scientist, he developed vaccines for polio and flu |
| 44% | HMS | 3 | Abbr. for the Prince of Wales |
| 44% | RPG | 3 | World of Warcraft, for one: Abbr. |
| 44% | MRNA | 4 | Type of vaccine: Abbr. |
| 44% | OST | 3 | Abbr. for an album of movie music |
| 44% | CPU | 3 | Site for billions of transistors: Abbr. |
| 43% | SABIN | 5 | Developer of the oral polio vaccine |
| 43% | ATTN | 4 | Abbr. for routing of mail |
| 42% | KIL | 3 | Abbr. for a factor of thousand, used less commonly |
| 42% | SGT | 3 | Preston of the Yukon, for one: Abbr. |
| 42% | IRA | 3 | Type of savings plan for retirement: Abbr. |
| 42% | MRS | 3 | Abbr. for half of some couples |
| 41% | EPA | 3 | Oil-spill prevention arm of the government: Abbr. |
| 41% | TGIF | 4 | "Yay for the end of the week!": Abbr. |
| 41% | ETA | 3 | Supposed end of a flight, for short: Abbr. |
| 41% | FRI | 3 | End of the work week, for most: Abbr. |
| 41% | REV | 3 | Title for the head of a church: Abbr. |
| 41% | MPH | 3 | Measurement for the speed of a vehicle: Abbr. |
| 41% | SYR | 3 | Setting for 400+ miles of the Euphrates: Abbr. |
| 41% | MOS | 3 | Several of them are named for gods: Abbr. |
| 41% | RET | 3 | What the "R" of AARP stands for: Abbr. |
| 41% | MMORPGS | 7 | RuneScape and World of Warcraft, for two: Abbr. |
| 41% | UCLA | 4 | Abbr. for University of California, Los Angeles |
| 41% | RNA | 3 | Basis of some vaccines, for short |
| 40% | PDA | 3 | Kissing in front of other people, for example: Abbr. |
| 40% | SYS | 3 | What the "S" of "Mac OS" stands for: Abbr. |
| 40% | IPA | 3 | Type of beer for which Lagunitas is known: Abbr. |