| 100% | DIAGONAL | 8 | Line that connects opposite corners of a square | 
| 70% | DIAGONAL | 8 | Line joining two opposite corners of a square | 
| 54% | RADII | 5 | Lines that connect the center of a circle to its edge | 
| 52% | DOUBLEO | 7 | Feature of this puzzle's circled squares that, when connected by a single line, visually represents 111-Across | 
| 44% | ELL | 3 | Shape of a square's corner | 
| 43% | NERDALERT | 9 | Line that describes a square? | 
| 41% | YOKE | 4 | Device that connects a team of oxen | 
| 41% | YOKES | 5 | Devices that connect a team of oxen | 
| 41% | DIAGONAL | 8 | Line that goes from one corner to the opposite one | 
| 40% | ROOK | 4 | Chess piece that starts on a corner square | 
| 40% | YSER | 4 | European river that connects a network of canals | 
| 40% | AXLE | 4 | Rod that connects the wheels of a car | 
| 40% | AXLE | 4 | Bar that connects a pair of car wheels | 
| 40% | AIRLOCKS | 8 | Chambers that connect inside of a ship with space | 
| 40% | QUATRAIN | 8 | A stanza that consists of four lines | 
| 40% | EAR | 3 | Dog ___, folded down corner of a book page that starts with a canine animal | 
| 40% | ALIEN | 5 | With 6-Across, subject of an eerie rural legend ... illustrated by connecting nine identically filled squares in this puzzle with a closed line | 
| 39% | SETUP | 5 | Part of a joke that leads to the punch line | 
| 39% | TANGENT | 7 | Geometric line that touches one point of a circle | 
| 39% | ROOK | 4 | Piece that begins on a corner square | 
| 38% | ISOBATH | 7 | Line on a map connecting points of equal underwater depth | 
| 38% | ISOBAR | 6 | Line on a map connecting places of equal atmospheric pressure | 
| 38% | YEA | 3 | Opposite of nay that sounds like a sports fan's cheer | 
| 37% | YOKE | 4 | Oxen connecting bar that is a homophone of 1a | 
| 37% | ANDABOTTLEOFRUM | 15 | Line that follows the opening syllables of 19-, 37-, and 42-Across, in a salty refrain | 
| 37% | UNREEL | 6 | The opposite of wind up, as with a fishing line | 
| 37% | WHOA | 4 | Cry to a horse that's the opposite of "Giddyup!" | 
| 37% | SIDEPROJECT | 11 | Venture that's separate from a main line of work | 
| 37% | GSUITS | 6 | Astronaut attire that sounds like a line of Google formalwear | 
| 37% | JAIL | 4 | One of the four corner squares on a Monopoly board |