Countable Nouns Starting with O and Containing AB

Browse 12 valid English countable nouns starting with O and containing AB, from Observable, Observability, Overabundance, Overelaboration, Ouabain, Overexcitability and Octosyllabic 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 OB
2 words
observable
observability
Starts with OC
2 words
octosyllabic
octosyllable
Starts with OS
1 words
osnaburg
Starts with OU
1 words
ouabain
Starts with OV5 words
overabundance
overelaboration
overexcitability
overabstraction
overstability
Starts with OX
1 words
oxylabrax

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