11-Letter Words Matching _____NN____

There are 14 11-letter words that match _____NN____. 7 are common words, such as BOUTONNIERE and CENTENNIALS. A rarer one is UNCHANNELED. In this set, E is the most frequent open letter (13 words). 14 words contain a doubled letter.

Full list 14

boutonnierecentennialsdisconnectsgunrunningslegionnairemillennialsmillenniumscachinnatedcachinnatescarbonnadesmisconnectsrechanneledtiemannitesunchanneled

About this list

Words
14 (7 common words)
Common example
boutonniere
Rare example
unchanneled
Doubled letters
14
Ending in S
9
Most frequent letter
E (13)

Questions

How many 11-letter words matching _____nn____ are there?

14. 7 of them are common words.

What is a common example?

BOUTONNIERE is among the common words in this set.