Countable Nouns Starting with X and Containing O

Browse 145 valid English countable nouns starting with X and containing O, from Xylophone, Xenophobe, Xenos, Xenotransplantation, Xenophile, Xiphoid and Xerophyte to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with XA24 words
xanthophyll
xanthoma
xanthone
xanthomatosis
xanthoderm
xanthomonas
xanthogen
xanthorrhoea
xanthosoma
xanthophore
xanthochroid
xanthoxyl
xanthocephalus
xanthodont
xanthation
xanthogenate
xanthometer
xanthophane
xanthoprotein
xanthorhiza
xanthophyllite
xanthorrhiza
xanthomonad
xanthoxalis
Starts with XE24 words
xerox
xenophobe
xenos
xenotransplantation
xenophile
xerophyte
xenograft
xenobiotic
xenotransplant
xenolith
xenopus
xerograph
xenops
xenotime
xenobiologist
xenocryst
xenology
xerogel
xerophile
xenoglossy
xenoblast
xenodiagnosis
xenophora
xenodochium
Starts with XI9 words
xiphoid
xiphosternum
xiphosuran
xiphopagus
xiphosure
xiphiplastron
xiphodon
xiphioid
xiphosurus
Starts with XO3 words
xoanon
xochimilcan
xonotlite
Starts with XY24 words
xylophone
xylose
xylophonist
xyloside
xylenol
xylorimba
xylon
xylosma
xylographer
xylocarp
xylonite
xylograph
xylophage
xylopia
xylometer
xyleborus
xyloyl
xylochrome
xylotrya
xylitone
xylorcin
xylophagid
xylophagidae
xylopyrographer

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWordsVocabulary HubPositive WordsNegative Words
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.