14-Letter Words Matching A_P___________

There are 18 14-letter words that match A_P___________. 12 are common words, such as ALPHABETICALLY and ALPHANUMERICAL. A rarer one is APPENDICITIDES. In this set, I is the most frequent open letter (17 words). 14 words contain a doubled letter.

Full list 18

alphabeticallyalphanumericalamplificationsappendectomiesappendicitisesapportionmentsappositenessesappreciativelyapprehensivelyapprenticeshipappropriationsapproximationsamphiarthrosisappendicectomyamphibiousnessamphiprostylesapparentnessesappendicitides

About this list

Words
18 (12 common words)
Common example
alphabetically
Rare example
appendicitides
Doubled letters
14
Ending in S
12
Most frequent letter
I (17)

Questions

How many 14-letter words matching a_p___________ are there?

18. 12 of them are common words.

What is a common example?

ALPHABETICALLY is among the common words in this set.