9-Letter Words Matching I______U_

There are 20 9-letter words that match I______U_. 11 are common words, such as IDEOLOGUE and IGNORAMUS. A rarer one is ISOGAMOUS. In this set, O is the most frequent open letter (19 words). 3 words contain a doubled letter.

Full list 20

ideologueignoramusimperiousimpetuousincuriousingeniousingenuousinjuriousinnocuousinsidiousinvidiousindecoruminnoxiousinodorousirriguousisologousisomerousidealogueinterclubisogamous

About this list

Words
20 (11 common words)
Common example
ideologue
Rare example
isogamous
Doubled letters
3
Ending in S
16
Most frequent letter
O (19)

Questions

How many 9-letter words matching i______u_ are there?

20. 11 of them are common words.

What is a common example?

IDEOLOGUE is among the common words in this set.