13-Letter Words Matching ____B__L_____

There are 12 13-letter words that match ____B__L_____. 2 are common words, such as BODYBUILDINGS and SHIPBUILDINGS. A rarer one is DEFIBRILLATES. In this set, I is the most frequent open letter (12 words). 5 words contain a doubled letter.

Full list 12

bodybuildingsshipbuildingsagrobiologiesdefibrillatorunembellishedaerobiologiesantibillboardboatbuildingscryobiologiescryobiologistdefibrillateddefibrillates

About this list

Words
12 (2 common words)
Common example
bodybuildings
Rare example
defibrillates
Doubled letters
5
Ending in S
7
Most frequent letter
I (12)

Questions

How many 13-letter words matching ____b__l_____ are there?

12. 2 of them are common words.

What is a common example?

BODYBUILDINGS is among the common words in this set.