| 100% | EERIE | 5 | Like "The X-Files" |
| 98% | HEROIC | 6 | Like the X-Men |
| 95% | ONED | 4 | Like the x- or y-axis |
| 94% | ONED | 4 | Like the x-, y- or z-axis |
| 93% | MUTATE | 6 | Evolve, like the X-men |
| 91% | GILLIAN | 7 | __ Anderson, flame-haired The X Files star |
| 89% | UNSOLVABLE | 10 | Like the equation "x = x + 1" |
| 89% | ROMAN | 5 | Like the numbers X or V |
| 89% | ROMAN | 5 | Like the numerals V and X |
| 88% | ANDERSON | 8 | Gillian __ starred in The X Files and The Fall |
| 87% | AUDIO | 5 | Like the contents of an MP3 file |
| 87% | ROMAN | 5 | Like the numerals I, V and X |
| 86% | ROMAN | 5 | Like the numerals I, V, X and L |
| 84% | STRANGE | 7 | Like cases on "The X-Files" |
| 83% | OLDTOWN | 7 | Like the road in Lil Nas X's 2019 megahit |
| 82% | APPEAL | 6 | Don't like the legal verdict? File this |
| 82% | FBI | 3 | The X-files agcy. |
| 82% | ETS | 3 | The X-Files subj. |
| 81% | NEWER | 5 | Like the Xbox One X vis-à-vis the Xbox One |
| 78% | LGBT | 4 | Like the community for Lil Nas X and k.d. lang, for short |
| 76% | OUTTHERE | 8 | The X-Files poster promised "the truth is __" |
| 75% | SUPERIOR | 8 | Like the 2 in "x squared" |
| 75% | WRITABLE | 8 | Like a file the user can put data in, in computing |
| 74% | LEAD | 4 | Element that blocks X-rays, like at the dentist |
| 74% | ANDERSON | 8 | Gillian, Agent Scully in The X-Files |
| 73% | ETS | 3 | Some characters in "The X Files," for short |
| 72% | DUCHOVNY | 8 | David, who played Mulder in The X-Files |
| 72% | SCULLY | 6 | Mulder and __, leading characters of the X-Files |
| 72% | MULDER | 6 | FBI Special Agent Fox __ from The X-Files |
| 72% | DOGGETT | 7 | John __, Mulder's replacement in The X-Files |