15-Letter Words Matching N___________N__

There are 22 15-letter words that match N___________N__. 6 are common words, such as NITROGLYCERINES and NONBELLIGERENTS. A rarer one is NONRECOMBINANTS. In this set, O is the most frequent open letter (22 words). 8 words contain a doubled letter.

Full list 22

nitroglycerinesnonbelligerentsnoninterferencenonoccupationalnonparticipantsnonprofessionalnoncommissionednonconventionalnondevelopmentsnonsignificancenorepinephrinesnonachievementsnonbelligerencynoncarcinogenicnonenforcementsnonengineeringsnonfulfillmentsnonindependencenoninflectionalnoninvolvementsnonoverlappingsnonrecombinants

About this list

Words
22 (6 common words)
Common example
nitroglycerines
Rare example
nonrecombinants
Doubled letters
8
Ending in S
12
Most frequent letter
O (22)

Questions

How many 15-letter words matching n___________n__ are there?

22. 6 of them are common words.

What is a common example?

NITROGLYCERINES is among the common words in this set.