Uncountable Nouns Starting with O and Containing B

This list gathers 181 English uncountable nouns starting with O and containing B, such as Observation, Obligation, Objection, Orbit, Obsession, Obedience and Obesity. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to check quantifier and measurement rules.

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
obedience
obesity
objectivity
obstruction
obscurity
observance
obscenity
oblivion
obsidian
obstetrics
obsolescence
objectification
obliteration
obfuscation
obstinacy
obviousness
observability
obi
obeisance
objectivism
Starts with OC
1 words
ochlophobia
Starts with OD
1 words
odontophobia
Starts with OL
2 words
olibanum
olfactophobia
Starts with OM5 words
ombre
omnishambles
omnibenevolence
omphalophlebitis
ombudsmanship
Starts with ON
1 words
onboarding
Starts with OO
1 words
oobleck
Starts with OP11 words
opprobrium
operability
ophidiophobia
opposability
openability
opprobriousness
opobalsam
ophthalmoblennorrhea
ophthalmophobia
ophidiobatrachia
ophthalmophlebotomy
Starts with OR7 words
orbit
organizability
ornithophobia
orbicularity
orbity
orthoborate
orthobenzoquinone
Starts with OS5 words
ossobuco
osmophobia
ostensibility
osnaburg
osteofibrosis
Starts with OU4 words
outback
outbreeding
ouabain
outbackery
Starts with OV24 words
overabundance
overbite
overburden
overbooking
overbalance
oversubscription
overcontribution
overelaboration
overurbanization
overburn
ovalbumin
overbreathing
overexcitability
overbank
overdeliberation
overambition
overabstraction
overambitiousness
overbearingness
overstability
oversubtlety
overboldness
overembellishment
overbleach
Starts with OX3 words
oxblood
oxyhemoglobin
oxyphenbutazone

•Browse Uncountable Nouns by Letter (A to Z)

Select a starting letter to browse uncountable 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.