14-Letter Words Matching ____A_D_______

There are 12 14-letter words that match ____A_D_______. 3 are common words, such as AGGRANDIZEMENT and BASTARDIZATION. A rarer one is UPSTANDINGNESS. In this set, I is the most frequent open letter (12 words). 5 words contain a doubled letter.

Full list 12

aggrandizementbastardizationoutlandishnessanacardiaceousmyocardiographpropaedeuticalcommandershipsnoncandidaciesnonhandicappedsubmandibularsunstandardizedupstandingness

About this list

Words
12 (3 common words)
Common example
aggrandizement
Rare example
upstandingness
Doubled letters
5
Ending in S
6
Most frequent letter
I (12)

Questions

How many 14-letter words matching ____a_d_______ are there?

12. 3 of them are common words.

What is a common example?

AGGRANDIZEMENT is among the common words in this set.