Countable Nouns Starting with OP and Containing IT

Browse 14 valid English countable nouns starting with OP and containing IT, from Opportunity, Opposition, Opacity, Optionality, Oppositionist, Ophiolite and Operativity 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 OPA
1 words
opacity
Starts with OPE
2 words
operativity
operosity
Starts with OPH
6 words
ophiolite
ophite
ophites
ophicalcite
ophthalmomyositis
ophthalmoneuritis
Starts with OPP
4 words
opportunity
opposite
opposition
oppositionist
Starts with OPT
1 words
optionality

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