12-Letter Words Matching _P_I________

There are 13 12-letter words that match _P_I________. 3 are common words, such as OPTIMIZATION and SPRIGHTLIEST. A rarer one is UPPITYNESSES. In this set, S is the most frequent open letter (12 words). 4 words contain a doubled letter.

Full list 13

optimizationsprightliestspringboardsuppishnessesepeirogeniesoptimalitiesoptimisationsphingosinessprightfullyspringhousesspringwatersuppitinessesuppitynesses

About this list

Words
13 (3 common words)
Common example
optimization
Rare example
uppitynesses
Doubled letters
4
Ending in S
9
Most frequent letter
S (12)

Questions

How many 12-letter words matching _p_i________ are there?

13. 3 of them are common words.

What is a common example?

OPTIMIZATION is among the common words in this set.