Countable Nouns Starting with O and Containing RU

Browse 25 valid English countable nouns starting with O and containing RU, from Obstruction, Overrun, Obstructionist, Onrush, Obtrusion, Organophosphorus and Oncovirus 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 OB6 words
obstruction
obstructionist
obtrusion
obstruent
obstructor
obtruder
Starts with ON3 words
onrush
oncovirus
oncornavirus
Starts with OR3 words
organophosphorus
orthomyxovirus
organistrum
Starts with OU3 words
outthrust
outrush
outrunner
Starts with OV10 words
overrun
overthrust
overutilization
overtrump
overstructure
overruff
overruler
overrunner
overscrupulosity
overbrutalization

•Browse Countable Nouns by Letter (A to Z)

Select a starting letter to browse countable nouns
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