Countable Nouns That Start with AR and End with IUM

Explore 6 verified English countable nouns starting with AR and ending with IUM, including Armamentarium, Archegonium, Archaebacterium, Arbitrium, Arctium and Archesporium. Sort these count nouns with singular and plural forms by word length for ESL grammar practice, determiner usage, and plural spelling below, or review singular and plural count rules in our noun grammar guide.

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Starts with ARB
1 words
arbitrium
Starts with ARC
4 words
archegonium
archaebacterium
arctium
archesporium
Starts with ARM
1 words
armamentarium

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