| Xbox {n} (video game console manufactured and distributed by Microsoft) | :: ایکس باکس /eks-bâks/ |
| xenoglossy {n} (knowledge of a language one has never learned) | :: زنوگلاسی |
| xenon {n} (chemical element) | :: زنون |
| xenophobe {n} (hater of foreigners) | :: دشمن بیگانه |
| xenophobia {n} (a pathological fear or hatred of strangers or foreigners) | :: بیگانههراسی /bigâne-harâsi/, گزنوفوبی /gzenofobi/ [dated] |
| xenophobic {n} (xenophobe) SEE: xenophobe | :: |
| Xerxes {prop} (Xerxes I of Persia) | :: خشایارشا /Xašâyâršâ/, خشایار /xašâyâr/ |
| Xerxes {prop} | :: خشایارشا /khšāyāršā/, خشایارشاه /khšāyāršāh/ |
| xi {n} (Greek letter) | :: کسی /ksi/ |
| Xianggang {prop} (Hong Kong) SEE: Hong Kong | :: |
| Xinjiang {prop} (autonomous region of China) | :: سینکیانگ /sin-kiyâng/ |
| xiphias {n} (xiphias) SEE: swordfish | :: |
| Xizang {prop} (Tibet) SEE: Tibet | :: |
| X-ray {n} (short wavelength electromagnetic radiation) | :: پرتوی ایکس /partou-ye iks/ |
| X-ray diffraction {n} ((physics)) | :: پراش پرتو ایکس /parâš-e partow-e iks/ |
| xylene {n} (di-methyl-benzene) | :: زایلن /zâylen/ |
| xylophone {n} (musical instrument) | :: سنتور چوبی |
