| 100% | RHO | 3 | Letter used with theta and phi to represent spherical coordinates |
| 59% | RHO | 3 | Letter used with theta and phi |
| 37% | OUIJA | 5 | Board with letters and numbers on it used to seek spiritualistic messages |
| 33% | PHI | 3 | Greek letter used to represent magnetic flux |
| 33% | DIGRAM | 6 | Two letters used to represent a single sound |
| 32% | BALL | 4 | Spherical object to throw and play 24a with |
| 31% | KEYBOARD | 8 | Device used to type letters and symbols |
| 31% | POSTALSCALE | 11 | Device used to weigh letters and packages |
| 30% | ETA | 3 | Greek letter that rhymes with beta, zeta, and theta |
| 30% | SQUARE | 6 | With 31-Down, hoedown activities, and a hint to the circled letters |
| 30% | SINKING | 7 | With 43-Down, uneasy anticipation ... and a hint to the circled letters |
| 30% | ARTISTS | 7 | With 57-Across, creative getaway, and a hint to the circled letters |
| 29% | CORNER | 6 | With 41-Across, corporate status symbol ... and a hint to the circled letters |
| 29% | RISING | 6 | With 61-Down, global warming consequence, and a hint to the circled letters |
| 29% | BIRCH | 5 | Tree with bark that's used to build canoes and wigwams |
| 29% | RANT | 4 | *Go on a tirade ... or a word used with 25d to mean shout and complain angrily |
| 29% | THE | 3 | With 63- and 64-Across, privileged info, and a hint to the circled letters |
| 29% | EMAIL | 5 | Letter sent electronically that you may use to keep in touch with your friend |
| 29% | SHIFT | 5 | With 100-Down, change one's approach, and a hint to the circled letters |
| 29% | TEAK | 4 | Wood that is used to build ships and furniture (rhymes with "weak) |
| 29% | SECRET | 6 | With 35-Across, anonymous voting method, and a hint to each set of circled letters |
| 28% | WHEELOF | 7 | With 37-Across, card in a tarot deck, and a hint to each circled letter set |
| 28% | INSIDEBASEBALL | 14 | Sports metaphor used to describe esoteric knowledge ... with a hint to the circled letters |
| 28% | SHOWY | 5 | A word used to describe someone who is flamboyant and theatrical (rhymes with "snowy") |
| 28% | ETA | 3 | Greek letter that comes between, and rhymes with, zeta and theta |
| 28% | SIGN | 4 | Use a closed fist to represent the letter S, say |
| 28% | ETA | 3 | Greek letter between, and rhyming with, zeta and theta |
| 28% | ETA | 3 | Greek letter between (and rhyming with) zeta and theta |
| 28% | TILTA | 5 | With 37-Across, spinning amusement ride, and a hint to this puzzle's design and circled letters |
| 28% | HEAT | 4 | With 53-Across, weather phenomenon with trapped warmth, and a hint to this puzzle's circled letters |