| Xanthophobia | fear of the color yellow (see list of phobias) | ||
| Xenoglossophobia | fear of foreign languages (see list of phobias) | ||
| Xenophobia | fear of strangers or foreigners (see list of phobias) | ||
| Xerophobia | fear of dryness (see list of phobias) | ||
| Xylology | study of wood (see list of branches of science) | ||
| Xylophobia | fear of wooden objects or fear of forests (see list of phobias) | ||
| Xyrophobia | fear of razors (see list of phobias) | ||
| 0 | A | B | C | D | E |
| F | G | H | I | J | K |
| L | M | N | O | P | Q |
| R | S | T | U | V | W |
| X | Y | Z | # | ||