Countable Nouns Starting with O and Containing PH

Browse 122 valid English countable nouns starting with O and containing PH, from Orphan, Orphanage, Orthography, Ophthalmologist, Overemphasis, Oceanographer and Organophosphate 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 OC5 words
oceanographer
ocnophil
ochlophobic
ochlophobiac
occipitosphenoid
Starts with OD7 words
odontophore
odontograph
odontophobia
odograph
odontography
odorophore
odontophoran
Starts with OE
2 words
oenophile
oenophilist
Starts with OL4 words
oliphant
oleography
oleograph
olfactophobia
Starts with OM8 words
omphalos
ombrophile
omphalocele
omophorion
omphalodes
omphacite
ommatophore
ombrophobe
Starts with ON3 words
onychophoran
ondograph
onychophagist
Starts with OO7 words
oophorectomy
oosphere
oophorosalpingectomy
oophyte
oophoron
oophorhysterectomy
oophorocystectomy
Starts with OP24 words
ophthalmologist
ophthalmoscope
ophidian
ophidiophobia
ophthalmoscopy
ophiolite
ophrys
ophidiophobic
ophthalmist
ophthalmoplegia
ophidiophile
ophite
ophiologist
ophidiophobe
ophiura
ophiurid
ophthalmometer
optophone
ophicleide
ophthalmometry
ophites
ophiuroid
opisthograph
ophiopogon
Starts with OR21 words
orphan
orphanage
orthography
organophosphate
organophosphorus
oropharynx
orthophosphate
orphrey
ornithophobia
orthograph
orthographer
orthographist
orpharion
orbitosphenoid
ornithomorph
ornithobiography
orographer
ornithodelphian
orthophyre
organographist
orchiencephaloma
Starts with OS8 words
osteophyte
osmophobia
oscillograph
osmophobic
osteography
osteochondrophyte
osteoencephaloma
ostreophage
Starts with OU
1 words
ouphe
Starts with OV
1 words
overemphasis
Starts with OX3 words
oxyphil
oxyphile
oxycephaly
Starts with OZ
1 words
ozonosphere

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