| 100% | EQUINOX | 7 | Event that marks the start of spring or autumn |
| 81% | EQUINOX | 7 | Astronomical event that marks the beginning of spring or autumn |
| 72% | EQUINOX | 7 | Astronomical event that marks the start of autumn |
| 52% | AUGUST | 6 | Month that marks the start of Virgo season |
| 52% | EROICA | 6 | Work that marked the start of musical Romanticism |
| 51% | MARCHEQUINOX | 12 | It marks the start of spring in the Northern Hemisphere |
| 49% | TET | 3 | Holiday that marks the arrival of spring |
| 48% | WARMUP | 6 | Pre-game exercises that often mark the start of a sports event: Hyph. |
| 47% | TET | 3 | Vietnamese holiday that marks the arrival of spring |
| 46% | TET | 3 | Vietnamese New Year that marks the arrival of spring |
| 44% | USHERIN | 7 | Mark the start of |
| 42% | BUZZER | 6 | Loud noise that marks the end of a quarter or a game in basketball |
| 42% | EQUINOX | 7 | Vernal __, signals the start of spring |
| 42% | ROBIN | 5 | Bird symbolizing the start of spring |
| 41% | MAYDAY | 6 | European festival marking the start of summer |
| 41% | MANET | 5 | His works mark the start of modern art |
| 40% | SHAM | 4 | ___ Ennessim: Egypt's national holiday that marks the beginning of spring |
| 40% | BACK | 4 | Word that can follow the start of 20-, 38- or 50-Across |
| 39% | FRENCH | 6 | Word that can precede the start of 20-, 35-, 43- or 58-Across |
| 39% | JOKE | 4 | Word that may follow the start of 20-, 25-, 44- or 50-Across |
| 39% | WAR | 3 | Word that can follow the start of 15-, 18-, 34-, 48- or 55-Across |
| 39% | MAN | 3 | Word that can follow the start of 18-, 24-, 38-, 53- or 61-Across |
| 39% | TACOTOPPING | 11 | The start of 17-Across or 11- or 33-Down |
| 38% | CORN | 4 | Word that can precede the start of 17- or 54-Across or 11- or 27-Down |
| 38% | ONSET | 5 | The start or beginning of something |
| 38% | TOOTH | 5 | First ___, milestone that might mark the start of solid food in a baby's diet |
| 38% | EID | 3 | Holiday that marks the end of Ramadan |
| 38% | DOUBLEBILL | 10 | Event with two headliners, or a description of a restaurant check that includes any of the answers to the starred clues? |
| 37% | MTDANA | 6 | Peak that marks the eastern boundary of Yosemite Natl. Park |
| 37% | CUSP | 4 | Point that marks the beginning of a change |