15-Letter Words Matching _____N____T____

There are 12 15-letter words that match _____N____T____. 2 are common words, such as AUTHENTICATIONS and BROKENHEARTEDLY. A rarer one is UNDERNUTRITIONS. 1 words contain a doubled letter.

Full list 12

authenticationsbrokenheartedlycommensurationscotransductionsdisconsolationsfibrinopeptidesnonconsumptionspremanufacturedpremanufacturespreponderationssupernutritionsundernutritions

About this list

Words
12 (2 common words)
Common example
authentications
Rare example
undernutritions
Doubled letters
1
Ending in S
10

Questions

How many 15-letter words matching _____n____t____ are there?

12. 2 of them are common words.

What is a common example?

AUTHENTICATIONS is among the common words in this set.