Countable Nouns Starting with OO and Containing S

This list gathers 10 English countable nouns starting with OO and containing S, such as Oops, Oodles, Oocyst, Oologist, Oosphere, Oospore and Oophorosalpingectomy. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review singular and plural count rules.

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Starts with OOC
1 words
oocyst
Starts with OOD
1 words
oodles
Starts with OOL
1 words
oologist
Starts with OOP
4 words
oops
oophorosalpingectomy
oophorhysterectomy
oophorocystectomy
Starts with OOS
3 words
oosphere
oospore
oosperm

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