Countable Nouns That Start with IRR

Browse 39 English countable nouns starting with the prefix IRR, including Irregular, Irrational, Irrigation, Irritation, Irregularity, Irreconcilable and Irritant. Sort these count nouns with singular and plural forms by letter count for ESL grammar practice, determiner usage, and plural spelling, or consult our noun grammar guide.

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Starts with IRRA
7 words
irrational
irrationality
irradiation
irradiance
irradiator
irrationalist
irradiancy
Starts with IRRE
24 words
irregular
irregularity
irreconcilable
irrelevance
irresponsibility
irreducible
irreverence
irrelevancy
irreversibility
irredentist
irreducibility
irreality
irreconcilability
irreproducibility
irreciprocity
irreligionist
irredenta
irreconcilement
irreduction
irrelation
irreconciliation
irrespectability
irremission
irrecognition
Starts with IRRI
7 words
irrigation
irritation
irritant
irrigator
irritancy
irritator
irrision
Starts with IRRU
1 words
irruption

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