Countable Nouns That Start with O and End with ES

Explore 7 verified English countable nouns starting with O and ending with ES, including Oodles, Obsequies, Omnishambles, Omphalodes, Optimates, Ophites and Odontornithes. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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Starts with OB
1 words
obsequies
Starts with OD
1 words
odontornithes
Starts with OM
2 words
omnishambles
omphalodes
Starts with OO
1 words
oodles
Starts with OP
2 words
optimates
ophites

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