11-Letter Words Matching ____NN_____

There are 34 11-letter words that match ____NN_____. 15 are common words, such as BROWNNESSES and CLEANNESSES. A rarer one is UNKENNELLED. In this set, E is the most frequent open letter (29 words). 34 words contain a doubled letter.

Full list 34

Common words

brownnessescleannessesgreennesseshumannessesmayonnaisesperenniallyplainnessesreconnectedreconnoiterreconnoitresternnessestriennially
brownnessescleannessesgreennesseshumannessesmayonnaisesperenniallyplainnessesreconnectedreconnoiterreconnoitresternnessestrienniallytyrannizingtyrannosaurunconnecteddecennariesdecenniallyperennatingpreannouncetyrannicidetyrannouslyuncanninessaliennessesbipinnatelybrownnosersbrownnosingdisannulledordonnancesperennationtyrannisingtyrannizersunbonnetingunkennelingunkennelled

About this list

Words
34 (15 common words)
Common example
brownnesses
Rare example
unkennelled
Doubled letters
34
Ending in S
13
Most frequent letter
E (29)

Questions

How many 11-letter words matching ____nn_____ are there?

34. 15 of them are common words.

What is a common example?

BROWNNESSES is among the common words in this set.