13-Letter Words Matching ____UM_______

There are 24 13-letter words that match ____UM_______. 11 are common words, such as CIRCUMCISIONS and CIRCUMFERENCE. A rarer one is NONNUMERICALS. In this set, I is the most frequent open letter (24 words). 4 words contain a doubled letter.

Full list 24

circumcisionscircumferencecircumscribedcircumscribescircumspectlycircumstancedcircumstancescircumventingcircumventionconsummationsnoncumulativecircumambientcircumscribercircumvallatecircumventiveconsumeristicconsumptivelypresumptivelycircumcenterscircumcirclescircumfusionscircumstellarconsumershipsnonnumericals

About this list

Words
24 (11 common words)
Common example
circumcisions
Rare example
nonnumericals
Doubled letters
4
Ending in S
9
Most frequent letter
I (24)

Questions

How many 13-letter words matching ____um_______ are there?

24. 11 of them are common words.

What is a common example?

CIRCUMCISIONS is among the common words in this set.