12-Letter Words Matching A________H__

There are 13 12-letter words that match A________H__. 3 are common words, such as ACCOMPLISHED and ACCOMPLISHES. A rarer one is ARCHERFISHES. In this set, I is the most frequent open letter (13 words). 5 words contain a doubled letter.

Full list 13

accomplishedaccomplishesamateurishlyaccomplisherallelopathicantistrophesattorneyshipamphibrachicangiographicanglerfishesantistrophicaortographicarcherfishes

About this list

Words
13 (3 common words)
Common example
accomplished
Rare example
archerfishes
Doubled letters
5
Ending in S
4
Most frequent letter
I (13)

Questions

How many 12-letter words matching a________h__ are there?

13. 3 of them are common words.

What is a common example?

ACCOMPLISHED is among the common words in this set.