9-Letter Words Matching _M___R___

There are 12 9-letter words that match _M___R___. 6 are common words, such as EMBARRASS and IMAGERIES. A rarer one is OMNIARCHS. In this set, I is the most frequent open letter (11 words). 4 words contain a doubled letter.

Full list 12

embarrassimageriesimmigrantimmigrateimpairingimploringimpetrateembarringimpairersimpearledimplorersomniarchs

About this list

Words
12 (6 common words)
Common example
embarrass
Rare example
omniarchs
Doubled letters
4
Ending in S
5
Most frequent letter
I (11)

Questions

How many 9-letter words matching _m___r___ are there?

12. 6 of them are common words.

What is a common example?

EMBARRASS is among the common words in this set.