12-Letter Words Matching __UM________

There are 15 12-letter words that match __UM________. 8 are common words, such as ADUMBRATIONS and CHUMMINESSES. A rarer one is THUMBTACKING. In this set, I is the most frequent open letter (15 words). 7 words contain a doubled letter.

Full list 15

adumbrationschumminessesclumsinessescrumminessesecumenicallyecumenicismsenumerationsgrumpinessesfrumpishnessplumbiferousslumgullionsdrumbeatingsecumenicistsslumpflationthumbtacking

About this list

Words
15 (8 common words)
Common example
adumbrations
Rare example
thumbtacking
Doubled letters
7
Ending in S
12
Most frequent letter
I (15)

Questions

How many 12-letter words matching __um________ are there?

15. 8 of them are common words.

What is a common example?

ADUMBRATIONS is among the common words in this set.