Abstract Nouns That Start with O and End with ON

Explore 185 verified English abstract nouns starting with O and ending with ON, including Organization, Operation, Opinion, Option, Occasion, Opposition and Observation. Sort these idea words for emotions, qualities, and intangible concepts by word length for essay writing, poetry, and expressive communication below, or explore examples of abstract vs. concrete nouns in our noun grammar guide.

Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with OB24 words
observation
obligation
objection
obsession
obstruction
oblivion
objectification
obliteration
obfuscation
oblation
obscuration
obtrusion
obviation
obstipation
obversion
objectivation
obturation
objectivization
objurgation
obtention
obduction
obtestation
obsoletion
obliquation
Starts with OC8 words
occasion
occupation
occlusion
occultation
octillion
occidentalization
octodecillion
ocellation
Starts with OF
2 words
offseason
officiation
Starts with OL
2 words
olfaction
oligomerization
Starts with OM
1 words
omission
Starts with ON
1 words
onomasticon
Starts with OP12 words
operation
opinion
option
opposition
optimization
oppression
opsonization
opacification
oppilation
opsonification
oppignoration
oppigneration
Starts with OR10 words
organization
orientation
orchestration
ordination
ornamentation
origination
oration
orison
orthogonalization
orientalization
Starts with OS6 words
oscillation
ostentation
ossification
osmoregulation
osculation
oscitation
Starts with OU
1 words
outmigration
Starts with OV24 words
ovulation
ovation
overreaction
overpopulation
overconsumption
overcorrection
oversimplification
overproduction
overstimulation
overrepresentation
overcompensation
overexertion
overconcentration
overestimation
oversaturation
overcomplication
overprotection
overgeneralization
overvaluation
overextension
overexploitation
overregulation
overspecialization
overexpansion
Starts with OX4 words
oxidation
oxymoron
oxygenation
oxidization
Starts with OZ
2 words
ozonation
ozonization

•Browse Abstract Nouns by Letter (A to Z)

Select a starting letter to browse abstract 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.