Countable Nouns Starting with O and Containing IT

Explore 132 verified English countable nouns starting with O and containing IT, including Opportunity, Opposition, Outfit, Orbit, Originality, Obscurity and Orbital. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with OB12 words
obscurity
obituary
obscenity
obliteration
observability
obit
obliquity
obituarist
obiter
obtusity
obliterator
obtundity
Starts with OC6 words
occipital
octahedrite
occipitofrontalis
occasionality
occipitoposterior
occipitosphenoid
Starts with OD3 words
oddity
odontolite
odontornithes
Starts with OF
1 words
officiality
Starts with OI
1 words
oiticica
Starts with OL4 words
olinguito
olivenite
olitory
olecranarthritis
Starts with OM4 words
omittance
omitter
omphacite
omnipotentiality
Starts with ON4 words
oneirocritic
oneirocritics
onychitis
onychite
Starts with OO3 words
oolite
oolith
oobit
Starts with OP14 words
opportunity
opposite
opposition
opacity
optionality
oppositionist
ophiolite
operativity
ophite
operosity
ophites
ophicalcite
ophthalmomyositis
ophthalmoneuritis
Starts with OR24 words
orbit
originality
orbital
orbiter
orthogonality
ornithologist
orality
ornithopter
ornithomimid
ornithopod
orotundity
ornithischian
orbita
ornithorhynchus
orientality
ornithogalum
ornithophobia
ornithomimosaur
oracularity
ornithoid
orangequit
orbity
orbitosphenoid
orchiepididymitis
Starts with OS7 words
osmolarity
osteomyelitis
osmolality
osteoarthritic
oscitancy
oscitation
oscitance
Starts with OT3 words
otolith
otiosity
ottrelite
Starts with OU5 words
outfit
outfitter
ouistiti
oubit
outcity
Starts with OV24 words
overwrite
overbite
overactivity
overcommitment
overcapacity
oversensitivity
overexploitation
overhit
oviposition
overgenerosity
overfamiliarity
overwithholding
ovipositor
overstitch
overcapitalization
overexcitability
ovality
oversite
overpitch
oversimplicity
overstability
overintensity
overingenuity
overdiversity
Starts with OZ
1 words
ozokerite

•Browse Countable Nouns by Letter (A to Z)

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