12-Letter Words Matching ______A_R___

There are 20 12-letter words that match ______A_R___. 7 are common words, such as AMBASSADRESS and CANDELABRUMS. A rarer one is SUPERCARRIER. In this set, S is the most frequent open letter (19 words). 7 words contain a doubled letter.

Full list 20

ambassadresscandelabrumsintermarriedintermarriespsychiatriespsychiatristwheelbarrowsdisembarrasshagiolatriesheliolatriesiconolatriessubparagraphsuperpatriotunchivalrousarchosaurianbardolatriescrossbarringdimercaprolsheliolatroussupercarrier

About this list

Words
20 (7 common words)
Common example
ambassadress
Rare example
supercarrier
Doubled letters
7
Ending in S
13
Most frequent letter
S (19)

Questions

How many 12-letter words matching ______a_r___ are there?

20. 7 of them are common words.

What is a common example?

AMBASSADRESS is among the common words in this set.