Countable Nouns Starting with OR and Containing IS

Browse 44 valid English countable nouns starting with OR and containing IS, from Organism, Orthodontist, Organist, Orientalism, Ornithologist, Originalist and Orientalist 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 ORA
1 words
oralist
Starts with ORB
1 words
orbicularis
Starts with ORC6 words
orchardist
orchis
orchidist
orchidologist
orchestralist
orchiepididymitis
Starts with ORE
2 words
orexis
oreologist
Starts with ORG7 words
organism
organist
organogenesis
organicist
organologist
organistrum
organographist
Starts with ORI5 words
orientalism
originalist
orientalist
orisha
orison
Starts with ORN5 words
ornithologist
ornithischian
ornamentalist
ornis
ornamentist
Starts with ORO
2 words
orogenesis
orologist
Starts with ORR
2 words
orris
orrisroot
Starts with ORT13 words
orthodontist
orthopedist
orthotist
orthosis
orthoptist
orthoepist
orthographist
orthopterist
orthopterologist
orthoprism
orthoaxis
orthopsychiatrist
orthogenesist

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