14-Letter Words Matching _____P__N_____

There are 18 14-letter words that match _____P__N_____. 3 are common words, such as DISAPPOINTMENT and DISCIPLINARIAN. A rarer one is UNDERPAINTINGS. 5 words contain a doubled letter.

Full list 18

disappointmentdisciplinarianinterplanetaryimpropernessesphytoplanktonsdisappointedlydisciplinarilydisciplinarityintrepidnessesmicroplanktonsnannoplanktonsnonexplanatoryoligopsonisticphytoplanktersprotoplanetarysuperphenomenatransplantableunderpaintings

About this list

Words
18 (3 common words)
Common example
disappointment
Rare example
underpaintings
Doubled letters
5
Ending in S
7

Questions

How many 14-letter words matching _____p__n_____ are there?

18. 3 of them are common words.

What is a common example?

DISAPPOINTMENT is among the common words in this set.