Nouns Ending in IUM and Containing NN

Explore 15 verified English nouns ending in IUM and containing NN, including Millennium, Biennium, Quadrennium, Decennium, Triennium, Quinquennium and Quadriennium. Browse these naming words for people, places, and things below, or review pluralization and capitalization rules in our noun grammar guide.

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Starts with B
2 words
biennium
bimillennium
Starts with C
1 words
centennium
Starts with D
1 words
decennium
Starts with M
1 words
millennium
Starts with Q3 words
quadrennium
quinquennium
quadriennium
Starts with S
2 words
septennium
sexennium
Starts with T
1 words
triennium
Starts with U4 words
unnilquadium
unnilhexium
unnilpentium
unnilseptium

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