15-Letter Words Matching A_C____________

There are 19 15-letter words that match A_C____________. 6 are common words, such as ACCEPTABILITIES and ACCESSIBILITIES. A rarer one is ARCHEOLOGICALLY. In this set, I is the most frequent open letter (17 words). 12 words contain a doubled letter.

Full list 19

acceptabilitiesaccessibilitiesacclimatizationaccommodatinglyaccomplishmentsarchitecturallyaccountablenessancylostomiasisarchaeopteryxesarchiepiscopacyarchiepiscopateasclepiadaceousacceptingnessesaccommodationalaccountantshipsacculturationalancylostomiasesarchaebacteriumarcheologically

About this list

Words
19 (6 common words)
Common example
acceptabilities
Rare example
archeologically
Doubled letters
12
Ending in S
10
Most frequent letter
I (17)

Questions

How many 15-letter words matching a_c____________ are there?

19. 6 of them are common words.

What is a common example?

ACCEPTABILITIES is among the common words in this set.