15-Letter Words Matching _O___O_________

There are 24 15-letter words that match _O___O_________. 7 are common words, such as CONFRONTATIONAL and CONGLOMERATIONS. A rarer one is POSTPOLLINATION. In this set, I is the most frequent open letter (21 words). 14 words contain a doubled letter.

Full list 24

confrontationalconglomerationscontroversiallymonopolizationsnoncooperationsnonprofessionalpostconsonantalcontrollabilitycontrollershipshorizontalitiesmorphologicallymorphophonemicstoxicologicallyzoogeographicalconglomerateursmonomolecularlymontmorillonitenonbiographicalnonbiologicallynonphotographicnonprofessorialnonprogressivespolymorphicallypostpollination

About this list

Words
24 (7 common words)
Common example
confrontational
Rare example
postpollination
Doubled letters
14
Ending in S
8
Most frequent letter
I (21)

Questions

How many 15-letter words matching _o___o_________ are there?

24. 7 of them are common words.

What is a common example?

CONFRONTATIONAL is among the common words in this set.