11-Letter Words Matching ___U_____M_

There are 13 11-letter words that match ___U_____M_. 5 are common words, such as CHAUVINISMS and NATURALISMS. A rarer one is TRAUMATISMS. In this set, S is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 13

chauvinismsnaturalismsrheumatismssecularismstroublesomedisulfiramspneumectomysimulacrumsilluminismsinsularismsrefugeeismssequestrumstraumatisms

About this list

Words
13 (5 common words)
Common example
chauvinisms
Rare example
traumatisms
Doubled letters
2
Ending in S
11
Most frequent letter
S (12)

Questions

How many 11-letter words matching ___u_____m_ are there?

13. 5 of them are common words.

What is a common example?

CHAUVINISMS is among the common words in this set.