Abstract Nouns Starting with O and Containing A
Browse 635 valid English abstract nouns starting with O and containing A, from Okay, Organization, Operation, Ocean, Operating, Ordinary and Occasion to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to explore examples of abstract vs. concrete nouns.
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Starts with OA5 words
oath
oasis
oafishness
oarsmanship
oakiness
Starts with OB24 words
observation
obligation
obstacle
observable
observance
objectification
obliteration
obfuscation
obstinacy
observability
obeisance
oblation
obscuration
obduracy
obtainment
obscurantism
obbligato
obviation
obligatoriness
obstinateness
obtainability
obeah
objectionability
oblateness
Starts with OC24 words
ocean
occasion
occupation
occupancy
octave
octane
oceanography
octal
occam
occultation
ochlocracy
occidentalism
occasionalism
octennial
occidentalization
occupance
oceanology
octosyllabic
octameter
octonary
ochlophobia
occasionality
octangle
octarchy
Starts with OD6 words
odal
odontalgia
odonatology
odontophobia
odontography
odontohyperesthesia
Starts with OE
2 words oenomania
oenomancy
Starts with OF11 words
offseason
offbeat
offramp
officialdom
offtake
officiality
officiation
officialese
offhandedness
officialism
officialty
Starts with OG
1 words ogham
Starts with OH
1 words ohmage
Starts with OK
2 words okay
okta
Starts with OL19 words
oligarchy
olfactory
olympiad
olfaction
oligomerization
oldspeak
oliguria
oligospermia
olfact
oligemia
olfactology
olfactometry
oligophagy
olfactronics
oleaginousness
oligocythemia
olecranarthritis
olfactophobia
oligophosphaturia
Starts with OM19 words
omega
omerta
omnishambles
omnisexuality
omphaloskepsis
omittance
omophagy
omphalitis
omophagia
omniana
omphalophlebitis
omnifariousness
ombudsmanship
omniparity
omnisignificance
omnipotentiality
omphalomancy
omoplatoscopy
omnirepresentativeness
Starts with ON17 words
onboarding
onslaught
onomatopoeia
onomastics
onanism
onbeat
onomatopoiesis
oneiromancy
ontake
onchocerciasis
onomatology
onfall
onychophagy
onomasticon
onomasiology
oneirodynia
onychomancy
Starts with OO
2 words oompah
oogamy
Starts with OP24 words
operation
operating
opera
optional
optimization
opacity
opiate
ophthalmology
operetta
operand
optimality
operability
optionality
opaqueness
operant
opalescence
optative
operatics
openheartedness
operatorship
opsonization
ophidiophobia
ophthalmia
ophthalmoscopy
Starts with OR24 words
organization
ordinary
orientation
organism
originality
oracle
orgasm
ornament
ordeal
orbital
ordinance
orchestration
orphanage
ordination
ordinal
origami
ornamentation
oratory
origination
oration
orthography
ordinariness
orthogonality
orientalism
Starts with OS24 words
oscillation
osteoarthritis
ostracism
ostentation
osteopathy
ossification
osmolarity
osmolality
ostinato
osmoregulation
osteomalacia
ostentatiousness
osculation
osteoarthrosis
osmophobia
osteoarthropathy
oscillography
oscitancy
oscitation
oscitance
osteography
osteoclasis
osteochondropathy
osmophilia
Starts with OT3 words
otolaryngology
ottava
otohemineurasthenia
Starts with OU24 words
outrage
outreach
outbreak
outward
outage
outlay
outplay
outperformance
outrageousness
outspread
outplacement
outlandishness
outdatedness
outlawry
outgassing
outmigration
outpainting
outwardness
outdoorsmanship
outtrade
outrance
outmarriage
outtasking
outbackery
Starts with OV24 words
overhead
overlap
overload
overlay
overhaul
overhang
ovulation
ovation
overreaction
overpayment
overestimate
overdraft
overcharge
overpay
overpopulation
overreach
overstatement
overeating
overstay
overwatch
overshare
overabundance
overhand
oversimplification
Starts with OX6 words
oxidation
oxygenation
oxidization
oxyuriasis
oxycephaly
oxgate
Starts with OZ
2 words ozonation
ozonization