Countable Nouns Starting with O and Containing X

Browse 107 valid English countable nouns starting with O and containing X, from Orthodoxy, Oxide, Oxidation, Oxymoron, Oxycodone, Onyx and Oxy 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 OB3 words
obex
obstetrix
objurgatrix
Starts with OC
2 words
octuplex
octakishexahedron
Starts with OD
2 words
odax
odontopteryx
Starts with OL
2 words
oleothorax
olax
Starts with OM
2 words
omnisexual
omentosplenopexy
Starts with ON
1 words
onyx
Starts with OP6 words
opoponax
opifex
opopanax
operatrix
ophthalmorrhexis
optomeninx
Starts with OR15 words
orthodox
orthodoxy
oryx
orexin
oropharynx
orthorexic
orthopraxy
orthopyroxene
oratrix
orthomyxovirus
orexis
ortyx
orthonyx
orthoaxis
oreortyx
Starts with OS
1 words
osculatrix
Starts with OT
1 words
otosalpinx
Starts with OU
2 words
outbox
outflux
Starts with OV9 words
overexposure
overexertion
overextension
overexploitation
overexpansion
overanxiety
overexcitability
overextraction
overexpectation
Starts with OX24 words
oxford
ox
oxide
oxidation
oxymoron
oxycodone
oxy
oximeter
oxtail
oxidant
oxidizer
oxidase
oxalate
oxidization
oxbow
oxblood
oxazepam
oxcart
oxygenator
oxalis
oxo
oxheart
oxtongue
oxaloacetate

•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.