| 100% | STURGEON | 8 | This fish is one of the main sources of caviar |
| 50% | LARGEST | 7 | Nile perch is one of the __ freshwater fish |
| 50% | THEBIGBANG | 10 | The mathematics of this theory was one of the things Stephen Hawking was engrossed in |
| 49% | GRAPES | 6 | Pulpy fruits that are the main sources of wine |
| 49% | PLAGUE | 6 | The Black Death was one of these |
| 48% | EVITA | 5 | Hit 1979 musical in which a character's mistress is one of the main roles |
| 48% | UNIX | 4 | Linux is one of the most popular clones of this OS |
| 48% | BUDDHISM | 8 | One of the concepts of this religion is dukkha |
| 48% | KOI | 3 | ___ Fish, decorative pond fish which is one of the longest living pet fish |
| 48% | HONDURAS | 8 | Punta is the main music of this country |
| 47% | WARTHOG | 7 | Pumbaa from The Lion King is one of these |
| 47% | ENVY | 4 | This deadly sin philosopher Bertrand Russell said was one of the most potent causes of unhappiness |
| 47% | TIEATIE | 7 | One of the top how-to searches is how to do this |
| 46% | CHICKPEA | 8 | This legume is the main ingredient of hummus |
| 46% | GAYBARS | 7 | New Orleans' Cafe Lafitte in Exile is one of the oldest of these still operating |
| 45% | COLUMN | 6 | This answer is in the third one of this puzzle |
| 45% | NOOSE | 5 | This may be at the end of one's rope |
| 45% | OLYMPIC | 7 | The first modern one of these games was in Greece |
| 45% | ALIENS | 6 | One of the eggs used in this 1986 film is now exhibited at the Smithsonian |
| 45% | BONAPARTE | 9 | Napoleon ___, one of the greatest conquerors of all time who is studied in military schools to this day |
| 45% | POLE | 4 | John Paul II has been the only pope that has been one of these |
| 44% | AESOP | 5 | One of his stories is the source of the "sour grapes" idiom |
| 44% | JET | 3 | The Lippisch Ente was the first one of these to fly, in 1928 |
| 44% | RACE | 4 | What the vehicle in "lane one" of this crossword is winning? |
| 44% | STELE | 5 | Stone of Terpon, excavated near the seawall of Antibes, France, in 1866 is one of these |
| 43% | COHOSTED | 8 | Was one of the emcees |
| 43% | ATOMICPILE | 10 | The first one of these was built by Fermi and his team in 1942 |
| 43% | SCOLD | 5 | Being a public one of these remained on the UK statute books until 1967 |
| 43% | CASHEW | 6 | One of the main ingredients of South African bolo polana |
| 43% | KOI | 3 | The Amur carp, native to Asia, is the wild variety of this popular pond fish |