Countable Nouns Starting with O and Containing BU

Explore 15 verified English countable nouns starting with O and containing BU, including Outburst, Ombudsman, Omnibus, Overabundance, Outbuilding, Ombudsperson and Overburden. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with OB
1 words
obumbration
Starts with OM5 words
ombudsman
omnibus
ombudsperson
ombuds
ombu
Starts with OS
2 words
ossobuco
osnaburg
Starts with OU
2 words
outburst
outbuilding
Starts with OV5 words
overabundance
overburden
overcontribution
overburn
ovalbumin

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