15-Letter Words Matching _A_________N___

There are 14 15-letter words that match _A_________N___. 6 are common words, such as CARDIOPULMONARY and CARNIVOROUSNESS. A rarer one is WARRANTABLENESS. In this set, S is the most frequent open letter (13 words). 12 words contain a doubled letter.

Full list 14

cardiopulmonarycarnivorousnesshalfheartednesshallucinogenicshardheartednesswarmheartednessfantasticalnessfashionablenessmagnanimousnessmajoritarianismpassionlessnessparadoxicalnesssaponaceousnesswarrantableness

About this list

Words
14 (6 common words)
Common example
cardiopulmonary
Rare example
warrantableness
Doubled letters
12
Ending in S
12
Most frequent letter
S (13)

Questions

How many 15-letter words matching _a_________n___ are there?

14. 6 of them are common words.

What is a common example?

CARDIOPULMONARY is among the common words in this set.