| Name | # Files | Name | # Files | Name | # Files | ||
|---|---|---|---|---|---|---|---|
| x_chromosome | 2 | x-ray | 4 | x-ray_astronomy | 2 | ||
| x-ray_diffraction | 3 | xenon | 2 | xenophon | 2 | ||
| xerography | 2 | xerophyte | 2 | xerxes | 2 | ||
| xhosa | 2 | xi_jiang | 2 | xiamen | 2 | ||
| xian | 2 | xian_incident | 2 | xingu | 2 | ||
| xinhua | 2 | xining | 2 | xinjiang_uygur | 2 | ||
| xizang | 2 | xmas | 4 | xochimilco | 2 | ||
| xylem | 2 | xylophone | 4 | xyz_affair | 2 |