13-Letter Words Matching ____B____A___

There are 21 13-letter words that match ____B____A___. 7 are common words, such as ACROBATICALLY and ALGEBRAICALLY. A rarer one is REHABILITATOR. In this set, I is the most frequent open letter (18 words). 10 words contain a doubled letter.

Full list 21

acrobaticallyalgebraicallyautobiographymetabolicallynonobservancerehabilitatedrehabilitatesadiabaticallydefibrillatorparabolicallyunabbreviatedunpublishablecatabolicallydefibrillateddefibrillatesestablishablemetabolizablenonabsorbablepresbyteratesrehabilitantsrehabilitator

About this list

Words
21 (7 common words)
Common example
acrobatically
Rare example
rehabilitator
Doubled letters
10
Ending in S
4
Most frequent letter
I (18)

Questions

How many 13-letter words matching ____b____a___ are there?

21. 7 of them are common words.

What is a common example?

ACROBATICALLY is among the common words in this set.