14-Letter Words Matching __A__O________

There are 20 14-letter words that match __A__O________. 7 are common words, such as DIAGNOSTICALLY and DIAGNOSTICIANS. A rarer one is UNACCOMMODATED. In this set, N is the most frequent open letter (19 words). 15 words contain a doubled letter.

Full list 20

diagnosticallydiagnosticiansgraciousnessesreappointmentsreapportioningspaciousnessesunaccomplishedphallocentrismspatiotemporalstationmasterstraitorousnesscraniocerebralfearsomenessesgladsomenessesglaucousnessesinappositenessplastoquinonesroadworthinessscabrousnessesunaccommodated

About this list

Words
20 (7 common words)
Common example
diagnostically
Rare example
unaccommodated
Doubled letters
15
Ending in S
13
Most frequent letter
N (19)

Questions

How many 14-letter words matching __a__o________ are there?

20. 7 of them are common words.

What is a common example?

DIAGNOSTICALLY is among the common words in this set.