| Text | Length |
| Xylophonist's need | 22 |
| Xylophone's cousin | 22 |
| Xenocrates' mentor | 22 |
| Xbox 360 motion sensor | 22 |
| Xenophon's teacher | 22 |
| Xanthippe's target | 22 |
| Xperia tablet producer | 22 |
| Xaviera Hollander book | 22 |
| X-ray examiners: Abbr. | 22 |
| X or Y, in an equation | 22 |
| Xanthippe, to Socrates | 22 |
| Xenophobe's dread | 21 |
| Xenophobe's focus | 21 |
| X- or y- in geometry | 21 |
| X-Games bike, briefly | 21 |
| Xavier's fifth ex | 21 |
| X's for Xanthippe | 21 |
| XK150 auto, for short | 21 |
| X, on a greeting card | 21 |
| X-ray vision thwarter | 21 |
| X-Men co-creator Stan | 21 |
| XY chromosome bearers | 21 |
| X-ray cousin, briefly | 21 |
| Xis' predecessors | 21 |
| XXX's counterpart | 21 |
| Xerox material: Abbr. | 21 |
| Xerox copy, for short | 21 |
| Xanthippe's crock | 21 |
| Xylophone look-alikes | 21 |
| X rating in old Rome? | 21 |
| Xanthippe's mall | 20 |
| Xenophobe's fear | 20 |
| Xenophobes' fear | 20 |
| x and y, in geometry | 20 |
| X, in ancient Greece | 20 |
| X, on fraternity row | 20 |
| XXXXX, to the Greeks | 20 |
| X's for Xenophon | 20 |
| XING sign silhouette | 20 |
| Xerophyte's home | 20 |
| Ximena's husband | 20 |
| Xenophane's town | 20 |
| Xanadu rock group | 20 |
| Xmas, for one: Abbr. | 20 |
| Xmas-wreath material | 20 |
| XK or XKE, for short | 20 |
| X-ray vision blocker | 20 |
| XXVI divided by half | 20 |
| Xmas-pageant figures | 20 |
| XXL article subjects | 20 |
| XPINPU LPXXOJP, e.g. | 20 |
| X's femme fatale | 20 |
| Xjclmzit obwny, e.g. | 20 |
| Xenophobe's bane | 20 |
| Xerox machine output | 20 |
| X-rated cheerleader? | 20 |
| XM Radio alternative | 20 |
| X-Men co-creator Lee | 20 |
| XIV lbs., in England | 20 |
| X or O in the middle | 20 |
| X, in Roman numerals | 20 |
| Xmas-tree adornments | 20 |
| Xbox owner's buy | 20 |
| Xbox 360 alternative | 20 |
| X-Wing-flying droid | 19 |
| x, y and z, in math | 19 |
| x and y, on a graph | 19 |
| x, y, and z in math | 19 |
| X or Y, in geometry | 19 |
| X-like Greek letter | 19 |
| XII x VIII + XI x V | 19 |
| Xmas gift recipient | 19 |
| Xena's daughter | 19 |
| X : kiss :: O : ___ | 19 |
| Xmas tree ornaments | 19 |
| X, in a love letter | 19 |
| Xerox option: Abbr. | 19 |
| Xylophone's kin | 19 |
| XXIth century start | 19 |
| X to the zero power | 19 |
| Xer's downfall? | 19 |
| Xerox insert: Abbr. | 19 |
| Xerox machine, e.g. | 19 |
| Xenophobic, perhaps | 19 |
| Xena portrayer Lucy | 19 |
| Xylophones' kin | 19 |
| Xmas armfuls: Abbr. | 19 |
| XXL tag on Depends? | 19 |
| X's in an alley | 19 |
| X's, in bowling | 19 |
| Xerography material | 19 |
| X and Y, in algebra | 19 |
| Xbox 360 competitor | 19 |
| Xbox One competitor | 19 |
| Xenophobes concern | 18 |
| Xanadu's river | 18 |
| XXVI Olympiad site | 18 |
| X and Y on a graph | 18 |
| X or Y, on a graph | 18 |
| Xhosa, for example | 18 |
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