13-Letter Words Matching _____U____A__

There are 13 13-letter words that match _____U____A__. 4 are common words, such as INSTRUMENTALS and PRECAUTIONARY. A rarer one is THOROUGHBRACE. In this set, I is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 13

instrumentalsprecautionaryquadruplicaterevolutionarydevolutionaryillocutionaryintegumentaryinvolutionaryquintuplicateconclusionaryquadrumviratequinquennialsthoroughbrace

About this list

Words
13 (4 common words)
Common example
instrumentals
Rare example
thoroughbrace
Doubled letters
2
Ending in S
2
Most frequent letter
I (12)

Questions

How many 13-letter words matching _____u____a__ are there?

13. 4 of them are common words.

What is a common example?

INSTRUMENTALS is among the common words in this set.