9-Letter Words Matching __U___U__

There are 21 9-letter words that match __U___U__. 12 are common words, such as ALUMINUMS and AQUANAUTS. A rarer one is TRUNKFULS. In this set, S is the most frequent open letter (20 words). 1 words contain a doubled letter.

Full list 21

aluminumsaquanautsaquariumsboutiquesclubhousedoughnutshousefulslaudanumsloudmouthmouthfulssculpturesourdoughngultrumschugalugsclubhaulsglucinumsscuppaugsthumbnutstruckfulstruebluestrunkfuls

About this list

Words
21 (12 common words)
Common example
aluminums
Rare example
trunkfuls
Doubled letters
1
Ending in S
17
Most frequent letter
S (20)

Questions

How many 9-letter words matching __u___u__ are there?

21. 12 of them are common words.

What is a common example?

ALUMINUMS is among the common words in this set.