13-Letter Words Matching _U_M_________

There are 12 13-letter words that match _U_M_________. 5 are common words, such as AUGMENTATIONS and MUMMIFICATION. A rarer one is SUMMERSAULTED. 5 words contain a doubled letter.

Full list 12

augmentationsmummificationoutmaneuveredoutmanoeuvredoutmanoeuvressummarizationaugmentativesoutmanipulatesubmandibularsubmillimetersummabilitiessummersaulted

About this list

Words
12 (5 common words)
Common example
augmentations
Rare example
summersaulted
Doubled letters
5
Ending in S
4

Questions

How many 13-letter words matching _u_m_________ are there?

12. 5 of them are common words.

What is a common example?

AUGMENTATIONS is among the common words in this set.