- xenopodidae
- XCVIII
- xenophoran
- xenacanthini
- xyloyl
- xenobiology
- xenodochy
- XCVI
- xpg
- xantippe
- xylographs
- xylometer
- xanthoma
- xylomancy
- xanthopathy
- xanthippes
- Xenarthrans
- xanthid
- xd
- xylocopidae
- xiphiplastron
- xylenols
- xenagogue
- xenophobe
- xystoi
- xanthopicrite
- xanthopsy
- xanthomous
- xiphosurus
- xanthian
- xeromenia
- Xiāngtán
- xmodem
- xlvi
- xynomyzithra
- xiangsheng
- xiphopagus
- xylosides
- Xenopus
- xylophagid
- xiaos
- xty
- xylocopa
- xenocrystic
- Xenylamine
- xenotropic
- xenomania
- xanthopathia
- xylostromata
- xeroform