14-Letter Words Matching A_E___________

There are 12 14-letter words that match A_E___________. 3 are common words, such as ACETAMINOPHENS and ADEQUATENESSES. A rarer one is AVERSIVENESSES. In this set, S is the most frequent open letter (11 words). 4 words contain a doubled letter.

Full list 12

acetaminophensadequatenessesanesthesiologyacetylcholinesadenocarcinomaamenablenessesanestheticallyacetazolamidesacetificationsanelasticitiesaperiodicitiesaversivenesses

About this list

Words
12 (3 common words)
Common example
acetaminophens
Rare example
aversivenesses
Doubled letters
4
Ending in S
9
Most frequent letter
S (11)

Questions

How many 14-letter words matching a_e___________ are there?

12. 3 of them are common words.

What is a common example?

ACETAMINOPHENS is among the common words in this set.