13-Letter Words Matching ____N_______N

There are 16 13-letter words that match ____N_______N. 7 are common words, such as BRAINCHILDREN and BUSINESSWOMAN. A rarer one is REPUNCTUATION. In this set, O is the most frequent open letter (15 words). 3 words contain a doubled letter.

Full list 16

brainchildrenbusinesswomanbusinesswomendemonstrationdiagnosticianstrangulationtriangulationeigenfunctionmesencephalonmetencephalonremonstrationtelencephalondisinhibitionovernutritionreinnervationrepunctuation

About this list

Words
16 (7 common words)
Common example
brainchildren
Rare example
repunctuation
Doubled letters
3
Ending in S
0
Most frequent letter
O (15)

Questions

How many 13-letter words matching ____n_______n are there?

16. 7 of them are common words.

What is a common example?

BRAINCHILDREN is among the common words in this set.