14-Letter Words Matching _____D_N______

There are 13 14-letter words that match _____D_N______. 3 are common words, such as CONFIDENTIALLY and PROVIDENTIALLY. A rarer one is UNCREDENTIALED. In this set, I is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 13

confidentiallyprovidentiallysubordinationshydrodynamicalpreordinationspresidentshipsrecondensationincardinationsoveridentifiedoveridentifiesperiodontologypresidentiallyuncredentialed

About this list

Words
13 (3 common words)
Common example
confidentially
Rare example
uncredentialed
Doubled letters
3
Ending in S
5
Most frequent letter
I (13)

Questions

How many 14-letter words matching _____d_n______ are there?

13. 3 of them are common words.

What is a common example?

CONFIDENTIALLY is among the common words in this set.