Uncountable Nouns Starting with O and Containing IT

Explore 148 verified English uncountable nouns starting with O and containing IT, including Opportunity, Opposition, Orbit, Obesity, Originality, Objectivity and Obscurity. Browse these mass nouns and non-count terms for substances and concepts below, or check quantifier and measurement rules in our noun grammar guide.

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obesity
objectivity
obscurity
obscenity
obliteration
observability
obliquity
obtainability
objectionability
obtusity
obsessionality
obtundity
Starts with OC
2 words
octahedrite
occasionality
Starts with OD
2 words
oddity
odontolite
Starts with OF
1 words
officiality
Starts with OI
1 words
oiticica
Starts with OL
2 words
olivenite
olecranarthritis
omnisexuality
omittance
omphalitis
omphacite
omphalophlebitis
omniparity
omnipotentiality
omneity
omniformity
oncogenicity
oneirocritics
onychitis
oneirocriticism
onychite
Starts with OO
2 words
oolite
oophoritis
opportunity
opposition
opacity
optimality
operability
optionality
oppositeness
operativity
opposability
oppositionism
openability
ophite
ophthalmitis
operosity
ophicalcite
ophthalmomyositis
ophthalmoneuritis
orbit
originality
ornithology
orthogonality
orality
orchitis
organicity
ornithine
orotundity
ornithosis
orthonormality
organizability
orientality
ornithophobia
oracularity
ornithomancy
ornithophily
orbicularity
ornithoscopy
orbity
orchiepididymitis
organity
ornithorhynchidae
orthonitroaniline
osteoarthritis
osmolarity
osteomyelitis
osmolality
osteitis
ostensibility
oscitancy
oscitation
oscitance
osteoperiostitis
otitis
ototoxicity
otiosity
ottrelite
overbite
overactivity
overcommitment
overcapacity
oversensitivity
overexcitement
overexploitation
oviposition
overgenerosity
overfamiliarity
overwithholding
overcapitalization
overnutrition
oviparity
overexcitability
overmaturity
ovality
overcompetitiveness
overemotionality
oversensitiveness
oversite
overambition
ovaritis
overambitiousness
Starts with OZ
2 words
ozocerite
ozokerite

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