Countable Nouns Starting with O and Containing Y

This list gathers 253 English countable nouns starting with O and containing Y, such as Okay, Opportunity, Ordinary, Orderly, Originality, Occupancy and Overlay. Use the sorting controls below to organize entries by length, or consult 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
obscurity
obituary
observatory
obscenity
obstinacy
observability
obloquy
obliquity
obtusity
obsequy
obeyer
observancy
obedientiary
obtundity
occupancy
ochlocracy
octyl
octosyllabic
octonary
occasionality
octosyllable
occamy
occy
octarchy
octastyle
octostyle
octogenary
octocentenary
octingentenary
octapody
octingenary
odyssey
oddity
odontography
odontopteryx
offertory
officiality
offy
officiary
officialty
Starts with OI
2 words
oilway
oilery
Starts with OK
2 words
okay
okeydoke
olympics
oligarchy
olfactory
oligopoly
olympiad
ology
oligodendrocyte
oligopsony
oleography
olallieberry
olykoek
oleandomycin
olitory
omohyoid
omnipotentiality
omentosplenopexy
ontology
onyx
ontogeny
onlay
onycha
onychia
oneyer
onychocryptosis
ongchoy
onychitis
onychium
onychophoran
oneirodynia
onychite
oncotomy
onychophagist
oocyte
oocyst
oophorectomy
oophorosalpingectomy
oophyte
oomycete
oophorhysterectomy
oophorocystectomy
opportunity
opacity
optionality
ophthalmoscopy
ophrys
oppugnancy
operativity
opponency
opaleye
ophthalmometry
operosity
opisthography
ophthalmomycosis
ophthalmodynamometer
ophthalmomyositis
ophthalmophyllum
ophthalmomyotomy
ophthalmophlebotomy
ordinary
orderly
originality
orthodoxy
orgy
oratory
orthography
orthogonality
orality
orangery
oryx
organdy
orogeny
orchiectomy
oropharynx
orrery
orebody
orchidectomy
orthopraxy
orotundity
orphrey
orthopyroxene
ornithorhynchus
orthoepy
osprey
ostomy
osteopathy
osmolarity
ossuary
osteocyte
osteomyelitis
osteotomy
osmolality
osteophyte
osteoplasty
ostiary
osteoarthropathy
osculatory
oscitancy
osteichthyan
osiery
osteography
ostensory
osteochondropathy
osteochondrophyte
ostreodynamometer
otorhinolaryngologist
otoplasty
otoscopy
otary
otiosity
otocyst
outcry
outlay
outplay
outlawry
ouguiya
outcity
overlay
ovary
overpayment
overpay
overstay
overplay
oversupply
overactivity
overcapacity
oversensitivity
overstory
overanalysis
overspray
overdye
overgenerosity
overstayer
overfamiliarity
ovariectomy
overtype
overanxiety
ovariohysterectomy
overexcitability
ovality
ovariotomy
Starts with OW
2 words
owlery
owelty
oxymoron
oxycodone
oxy
oxygenator
oxytetracycline
oxeye
oxygenase
oxyanion
oxytocic
oxyacid
oxyphil
oxytone
oxymel
oxytonic
oxyphile
oxysalt
oxycephaly
oxypetalum
oxysome
oxysulfide
oxygenizer
oxyanthraquinone
oxytrope
oxylabrax
oyster
oy
oyez
oystercatcher
oyer
oysterman
oysterer
Starts with OZ
1 words
ozonolysis

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
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.
© 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.