10 Letter Countable Nouns Starting with IR

Browse 12 valid English 10 letter countable nouns that start with IR, from Irrational, Irrigation, Irritation, Ironworker, Ironmonger, Irradiance and Ironmaster 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 IRI
2 words
iridectomy
iridosmine
Starts with IRO3 words
ironworker
ironmonger
ironmaster
Starts with IRR7 words
irrational
irrigation
irritation
irradiance
irradiator
irrelation
irradiancy

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