Countable Nouns That Start with OR and End with SIS

Explore 3 verified English countable nouns starting with OR and ending with SIS, including Organogenesis, Orthosis and Orogenesis. 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 ORG
1 words
organogenesis
Starts with ORO
1 words
orogenesis
Starts with ORT
1 words
orthosis

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