| 100% | IRS | 3 | Agency that's the subject of the book "Confessions of a Tax Collector": Abbr. |
| 48% | NOLA | 4 | City that's the subject of the book Musical Gumbo, for short |
| 48% | IKEA | 4 | Swedish store that's the subject of the book "Leading by Design" |
| 47% | OED | 3 | Ref. that's the subject of the book The Professor and the Madman |
| 47% | UPS | 3 | Delivery co. that’s the subject of the book “Big Brown” |
| 46% | IRS | 3 | Agency that was affected by the Tax Reform Act of 1986: Abbr. |
| 46% | NCAA | 4 | Group that's the subject of "bracketology": Abbr. |
| 45% | REM | 3 | Sleep phase that might be the subject of a sleep study: Abbr. |
| 45% | NOUN | 4 | Part of speech that's the subject of a sentence, typically |
| 45% | SPAM | 4 | Food that's the subject of a museum in Austin, Minn. |
| 45% | AMBERGRIS | 9 | Secretion that's the subject of a chapter in Moby-Dick |
| 44% | DST | 3 | Observance that was the subject of a Last Week Tonight "How Is This Still a Thing?" segment: abbr. |
| 44% | LYNDON | 6 | Johnson that's the subject of a museum at the University of Texas |
| 44% | ELSA | 4 | Lion that was the subject of the book "Born Free" and that is buried in Kenya's Meru National Park |
| 43% | WEAREEVERYWHERE | 15 | Rallying cry that's the title of a book on the Queer Liberation Movement |
| 43% | UBER | 4 | Company that’s the subject of Mike Isaac’s book “Super Pumped” |
| 43% | IRS | 3 | Agency that includes the Office of the Taxpayer Advocate: Abbr. |
| 43% | IRS | 3 | Subject of the book "Many Unhappy Returns": Abbr. |
| 43% | BLT | 3 | Sandwich that's the subject of a "Manifesto" by J. Kenji López-Alt, for short |
| 43% | OAK | 3 | Tree that is the title and subject of a Katharine Towers poetry book |
| 42% | WEAREEVERYWHERE | 15 | Queer visibility slogan that's the title of a 2019 visual history book |
| 41% | ICBM | 4 | Long-range nuke that was the subject of the SALT treaty: Abbr. |
| 41% | WVA | 3 | American state that is the subject of the song "Country Roads": Abbr. |
| 41% | NBA | 3 | League that was the subject of the docuseries “Shut Up and Dribble”: Abbr. |
| 41% | NOUN | 4 | Part of speech that's typically the subject of a sentence |
| 41% | ISLEROYALE | 10 | Lake Superior locale that's the subject of a more than 60 year study of a unique moose-wolf relationship |
| 41% | SURETE | 6 | French agency that was a predecessor of the FBI |
| 41% | ENO | 3 | Brian who's the subject of a documentary that's different every time it's screened |
| 40% | FLAP | 4 | Part of a book cover that's inside the book |
| 40% | CIA | 3 | Grp. that was the subject of a recent WikiLeaks release |