12-Letter Words Matching _NN_________

There are 25 12-letter words that match _NN_________. 10 are common words, such as ANNIHILATING and ANNIHILATION. A rarer one is UNNOURISHING. In this set, I is the most frequent open letter (22 words). 25 words contain a doubled letter.

Full list 25

Common words

annihilatingannihilationannihilatorsannouncementannunciationennoblementsinnatenessesinnervationsinnumeraciesunnoticeableannunciatingannunciators
annihilatingannihilationannihilatorsannouncementannunciationennoblementsinnatenessesinnervationsinnumeraciesunnoticeableannunciatingannunciatorsinnovationalunnegotiableunneighborlyunnewsworthyunnilhexiumsunnilpentiumunnilquadiumunnoticeablyannexationalannihilatoryannunciatoryinnovativelyunnourishing

About this list

Words
25 (10 common words)
Common example
annihilating
Rare example
unnourishing
Doubled letters
25
Ending in S
7
Most frequent letter
I (22)

Questions

How many 12-letter words matching _nn_________ are there?

25. 10 of them are common words.

What is a common example?

ANNIHILATING is among the common words in this set.