Countable Nouns Starting with O and Containing AN

Browse 178 valid English countable nouns starting with O and containing AN, from Organization, Ocean, Organic, Orange, Organ, Organism and Organizer to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with OA3 words
oarsman
oarswoman
oanshagh
Starts with OB9 words
observance
obsidian
obstetrician
obeisance
oban
obscurantist
obscurant
obligant
observancy
Starts with OC20 words
ocean
occupancy
occupant
octane
oceanfront
oceanside
octogenarian
oceanview
oceanographer
octant
oceanarium
octanol
occupance
oceanid
oceanologist
oceanaut
octangle
octopodan
octandrian
octonarian
Starts with OD4 words
odorant
odesan
oddsman
odontophoran
Starts with OF
2 words
officiant
offhandedness
Starts with OI3 words
oilman
oilcan
oilpan
Starts with OK
1 words
okanogan
Starts with OL6 words
oleander
oliphant
olecranon
oleandomycin
olecranarthritis
ologoan
Starts with OM5 words
ombudsman
omani
omnirange
omittance
omdurmani
Starts with ON5 words
onanist
oneiromancer
onomastician
onychophoran
oncostman
Starts with OP15 words
optician
operand
operant
ophidian
optant
oppugnancy
oppidan
opisthobranch
oppugnant
opopanax
ophiuran
opisthobranchiate
opisthocoelian
oppilant
opsomaniac
Starts with OR24 words
organization
organic
orange
organ
organism
organizer
orphan
ordinance
orphanage
oregano
organist
orangutan
organelle
orangeade
organza
orang
organoid
orangery
organophosphate
organogenesis
organdy
organum
organophosphorus
orleanian
Starts with OS6 words
osmanthus
oscitancy
osteichthyan
ostracodan
oscitance
ostracean
Starts with OT
2 words
ottoman
ottawan
Starts with OU9 words
outlander
outperformance
outdoorsman
outland
outdoorswoman
outspan
outmigrant
ouananiche
ouvirandra
Starts with OV21 words
overhang
overabundance
overhand
overbalance
overanalysis
overexpansion
overlander
overman
overanxiety
overinsurance
overmantel
overstanding
overbank
overblanket
overorganization
oversman
overissuance
overmanager
overhander
overgang
overglance
Starts with OX5 words
oxidant
oxyanion
oxgang
oxland
oxyanthraquinone
Starts with OY
1 words
oysterman
Starts with OZ
1 words
ozarkian

•Browse Countable Nouns by Letter (A to Z)

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