7-Letter Words Matching ___M__N

There are 15 7-letter words that match ___M__N. 4 are common words, such as CRAMPON and CRIMSON. A rarer one is VERMIAN. In this set, I is the most frequent open letter (9 words). 2 words contain a doubled letter.

Full list 15

cramponcrimsondrumlingremlinboomkinfermionkhamsinkremlinpygmeanstemsonnewmownplumpenpsammonptomainvermian

About this list

Words
15 (4 common words)
Common example
crampon
Rare example
vermian
Doubled letters
2
Ending in S
0
Most frequent letter
I (9)

Questions

How many 7-letter words matching ___m__n are there?

15. 4 of them are common words.

What is a common example?

CRAMPON is among the common words in this set.