Countable Nouns Starting with DU and Containing IO

This list gathers 7 English countable nouns starting with DU and containing IO, such as Duration, Duplication, Duodecillion, Dubitation, Dubiosity, Dupion and Dulcification. Use the sorting controls below to organize entries by length, or consult our noun grammar guide to review singular and plural count rules.

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Starts with DUB
2 words
dubitation
dubiosity
Starts with DUL
1 words
dulcification
Starts with DUO
1 words
duodecillion
Starts with DUP
2 words
duplication
dupion
Starts with DUR
1 words
duration

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