Nouns Starting with O and Containing US

Browse 140 valid English nouns starting with O and containing US, from Octopus, Opus, Overuse, Ouster, Omnibus, Onus and Obfuscation to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review pluralization and capitalization rules.

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Starts with OA
1 words
oasthouse
Starts with OB12 words
obfuscation
obviousness
obliviousness
obtuseness
obnoxiousness
obsequiousness
obtrusion
obtrusiveness
obtusity
obelus
obstreperousness
obliquus
Starts with OC9 words
octopus
occlusion
oculus
occlusive
ocellus
occlusor
occlusiveness
octonarius
octopusher
Starts with OD3 words
odiousness
odorousness
odoriferousness
Starts with OF
1 words
officiousness
Starts with OL
2 words
olympus
oleaginousness
Starts with OM5 words
omnibus
ominousness
omusubi
omnivorousness
omnifariousness
Starts with ON7 words
onus
onrush
oncovirus
onerousness
oncomouse
oncornavirus
oncus
Starts with OP7 words
opus
opuscule
opusculum
opprobriousness
opisthotonus
opinicus
opulus
Starts with OR6 words
organophosphorus
ornithorhynchus
orthomyxovirus
orthocousin
oraculousness
orthrosanthus
Starts with OS
2 words
osmanthus
ostentatiousness
Starts with OT
1 words
otocinclus
Starts with OU9 words
ouster
outhouse
outrageousness
ouse
outthrust
outrush
oushak
outgush
outflush
Starts with OV24 words
overuse
overplus
overthrust
overtrousers
overzealousness
overenthusiasm
overarousal
overadjustment
overfocus
overblouse
overtrust
overcautiousness
overindustrialization
overambitiousness
overmeticulousness
overconsciousness
overrighteousness
overconscientiousness
overscrupulousness
overcontentiousness
overgenerousness
overflush
overofficiousness
overeffusiveness
Starts with OX
2 words
oxus
oxyrhynchus
Starts with OZ
1 words
ozothamnus

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