15-Letter Words Matching ___P_I_________

There are 12 15-letter words that match ___P_I_________. 4 are common words, such as BUMPTIOUSNESSES and HARPSICHORDISTS. A rarer one is NONPHILOSOPHERS. 3 words contain a doubled letter.

Full list 12

bumptiousnessesharpsichordistsproprietorshipssimplificationscomplimentarilyproprietoriallyproprioceptionssimplicidentatecomplicatednessgraphitizationslyophilizationsnonphilosophers

About this list

Words
12 (4 common words)
Common example
bumptiousnesses
Rare example
nonphilosophers
Doubled letters
3
Ending in S
9

Questions

How many 15-letter words matching ___p_i_________ are there?

12. 4 of them are common words.

What is a common example?

BUMPTIOUSNESSES is among the common words in this set.