15-Letter Words Matching ____T__O_______

There are 12 15-letter words that match ____T__O_______. 2 are common words, such as COUNTEROFFERING and SANCTIMONIOUSLY. A rarer one is UNEXTRAORDINARY. In this set, I is the most frequent open letter (11 words). 3 words contain a doubled letter.

Full list 12

counterofferingsanctimoniouslyepistemologicalepistemologistsantitheoreticalcounterorderingcryptozoologiescryptozoologisthematoporphyrinstratovolcanoesuncategorizableunextraordinary

About this list

Words
12 (2 common words)
Common example
counteroffering
Rare example
unextraordinary
Doubled letters
3
Ending in S
3
Most frequent letter
I (11)

Questions

How many 15-letter words matching ____t__o_______ are there?

12. 2 of them are common words.

What is a common example?

COUNTEROFFERING is among the common words in this set.