13-Letter Words Matching __M_________N

There are 20 13-letter words that match __M_________N. 8 are common words, such as COMMEMORATION and COMMISERATION. A rarer one is ZOMBIFICATION. In this set, I is the most frequent open letter (20 words). 9 words contain a doubled letter.

Full list 20

commemorationcommiserationcommunicationcomprehensiondemonstrationdomesticationmummificationsymbolizationcommunitariancommunizationremonstrationsemiporcelainsummarizationtemporizationdemyelinationdomiciliationhemagglutininsemievergreensomatotrophinzombification

About this list

Words
20 (8 common words)
Common example
commemoration
Rare example
zombification
Doubled letters
9
Ending in S
0
Most frequent letter
I (20)

Questions

How many 13-letter words matching __m_________n are there?

20. 8 of them are common words.

What is a common example?

COMMEMORATION is among the common words in this set.