Countable Nouns That Start with O and End with ORE

Explore 8 verified English countable nouns starting with O and ending with ORE, including Ore, Omnivore, Overscore, Oospore, Odontophore, Ommatophore and Odorophore. 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 OC
1 words
ochidore
Starts with OD
2 words
odontophore
odorophore
Starts with OM
2 words
omnivore
ommatophore
Starts with OO
1 words
oospore
Starts with OR
1 words
ore
Starts with OV
1 words
overscore

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