Countable Nouns Starting with O and Containing HY

Browse 23 valid English countable nouns starting with O and containing HY, from Oligarchy, Orthography, Osteopathy, Osteophyte, Ovariohysterectomy, Ornithorhynchus and Oleography 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 OC
1 words
octarchy
Starts with OD
1 words
odontography
Starts with OL
2 words
oligarchy
oleography
Starts with OM
1 words
omohyoid
Starts with OO
2 words
oophyte
oophorhysterectomy
Starts with OP
2 words
opisthography
ophthalmophyllum
Starts with OR6 words
orthography
ornithorhynchus
orthostichy
ornithobiography
orthophyre
orthoveratraldehyde
Starts with OS7 words
osteopathy
osteophyte
osteoarthropathy
osteichthyan
osteography
osteochondropathy
osteochondrophyte
Starts with OV
1 words
ovariohysterectomy

•Browse Countable Nouns by Letter (A to Z)

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