15-Letter Words Matching P_______N______

There are 20 15-letter words that match P_______N______. 2 are common words, such as PARLIAMENTARIAN and PREDESTINATIONS. A rarer one is PYROTECHNICALLY. In this set, I is the most frequent open letter (19 words). 4 words contain a doubled letter.

Full list 20

parliamentarianpredestinationsphototransistorplumbaginaceouspsychogenicallypsycholinguistspaleomagnetismspaleomagnetistsparajournalismspararosanilinesphrasemongeringphytoplanktonicpredestinarianspreimplantationpremillenarianspremillenniallypreterminationspsychosynthesespsychosynthesispyrotechnically

About this list

Words
20 (2 common words)
Common example
parliamentarian
Rare example
pyrotechnically
Doubled letters
4
Ending in S
12
Most frequent letter
I (19)

Questions

How many 15-letter words matching p_______n______ are there?

20. 2 of them are common words.

What is a common example?

PARLIAMENTARIAN is among the common words in this set.