Countable Nouns Starting with OP and Containing IA

Explore 14 verified English countable nouns starting with OP and containing IA, including Opiate, Optician, Ophidian, Ophidiophobia, Opuntia, Ophthalmoplegia and Opisthobranchiate. Browse these count nouns with singular and plural forms below, or review singular and plural count rules in our noun grammar guide.

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Starts with OPH8 words
ophidian
ophidiophobia
ophthalmoplegia
ophthalmodiagnosis
ophidiarium
ophthalmophobia
ophthalmodiastimeter
ophthalmorrhagia
Starts with OPI3 words
opiate
opisthobranchiate
opisthocoelian
Starts with OPS
1 words
opsomaniac
Starts with OPT
1 words
optician
Starts with OPU
1 words
opuntia

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