15-Letter Words Matching _____N_______N_

There are 19 15-letter words that match _____N_______N_. 4 are common words, such as AUTHENTICATIONS and ENFRANCHISEMENT. A rarer one is UNDERNUTRITIONS. In this set, I is the most frequent open letter (18 words). 4 words contain a doubled letter.

Full list 19

authenticationsenfranchisementnoncontributingpreconditioningmyelencephalonsretransmissionscommensurationscotransductionsdiphenhydraminedisconsolationsnonconsumptionsoutmanipulatingoverencouragingoverengineeringpreponderationsprovincializingsuccinylcholinesupernutritionsundernutritions

About this list

Words
19 (4 common words)
Common example
authentications
Rare example
undernutritions
Doubled letters
4
Ending in S
10
Most frequent letter
I (18)

Questions

How many 15-letter words matching _____n_______n_ are there?

19. 4 of them are common words.

What is a common example?

AUTHENTICATIONS is among the common words in this set.