12-Letter Words Matching _M_A________

There are 17 12-letter words that match _M_A________. 8 are common words, such as AMBASSADRESS and AMIABILITIES. A rarer one is IMPASSIONING. In this set, I is the most frequent open letter (14 words). 11 words contain a doubled letter.

Full list 17

ambassadressamiabilitiesembarkationsembarrassingimmaculatelyimmateriallyimmaturitiesimpartialityempathicallyembarcaderosembattlementimmaculaciesimmanentismsimmanentistsimparadisingimpartationsimpassioning

About this list

Words
17 (8 common words)
Common example
ambassadress
Rare example
impassioning
Doubled letters
11
Ending in S
9
Most frequent letter
I (14)

Questions

How many 12-letter words matching _m_a________ are there?

17. 8 of them are common words.

What is a common example?

AMBASSADRESS is among the common words in this set.