14-Letter Words Matching A___O_________

There are 25 14-letter words that match A___O_________. 10 are common words, such as ACKNOWLEDGMENT and AGGLOMERATIONS. A rarer one is ASTROBIOLOGIST. In this set, I is the most frequent open letter (22 words). 12 words contain a doubled letter.

Full list 25

Common words

acknowledgmentagglomerationsapologeticallyappropriationsapproximationsastrologicallyastronomicallyastrophysicistauthoritariansauthorizationsachromaticallyadenocarcinoma
acknowledgmentagglomerationsapologeticallyappropriationsapproximationsastrologicallyastronomicallyastrophysicistauthoritariansauthorizationsachromaticallyadenocarcinomaanamorphoscopeanisometropiasaudiocassettesazidothymidineacknowledgedlyaggiornamentosaminoaciduriasaminopeptidaseaminophyllinesanchoriticallyanthophyllitesastrobiologiesastrobiologist

About this list

Words
25 (10 common words)
Common example
acknowledgment
Rare example
astrobiologist
Doubled letters
12
Ending in S
12
Most frequent letter
I (22)

Questions

How many 14-letter words matching a___o_________ are there?

25. 10 of them are common words.

What is a common example?

ACKNOWLEDGMENT is among the common words in this set.