15-Letter Words Matching _____N_____I___

There are 22 15-letter words that match _____N_____I___. 5 are common words, such as AUTHENTICATIONS and FORTUNETELLINGS. A rarer one is WAPPENSCHAWINGS. In this set, O is the most frequent open letter (20 words). 5 words contain a doubled letter.

Full list 22

authenticationsfortunetellingspaleontologistsphilanthropiststrigonometricalgalvanometricalmillenarianismspaleontologicalphilanthropicalretransmissionscommensurationscotransductionsdisconsolationsfibrinopeptidesmechanochemicalnonconsumptionsoverentertainedplatinocyanidespreponderationssupernutritionsundernutritionswappenschawings

About this list

Words
22 (5 common words)
Common example
authentications
Rare example
wappenschawings
Doubled letters
5
Ending in S
16
Most frequent letter
O (20)

Questions

How many 15-letter words matching _____n_____i___ are there?

22. 5 of them are common words.

What is a common example?

AUTHENTICATIONS is among the common words in this set.