14-Letter Words Matching _____A_H______

There are 17 14-letter words that match _____A_H______. 6 are common words, such as BIOGRAPHICALLY and GEOGRAPHICALLY. A rarer one is SUPERACHIEVERS. In this set, I is the most frequent open letter (16 words). 7 words contain a doubled letter.

Full list 17

biographicallygeographicallytelepathicallyunderachieversunderachievingwoolgatheringsantipatheticalorographicallysulphathiazolecytopathogenicdodecaphonistsepigraphicallyidiopathicallyplasmapheresesplasmapheresissubarachnoidalsuperachievers

About this list

Words
17 (6 common words)
Common example
biographically
Rare example
superachievers
Doubled letters
7
Ending in S
6
Most frequent letter
I (16)

Questions

How many 14-letter words matching _____a_h______ are there?

17. 6 of them are common words.

What is a common example?

BIOGRAPHICALLY is among the common words in this set.