13-Letter Words Matching ____B_T______

There are 18 13-letter words that match ____B_T______. 6 are common words, such as ACROBATICALLY and COHABITATIONS. A rarer one is PRESBYTERIALS. In this set, I is the most frequent open letter (17 words). 2 words contain a doubled letter.

Full list 18

acrobaticallycohabitationsexhibitionismexhibitionistinsubstantialunsubstantialadiabaticallyexhibitionersinhabitanciesphlebotomizedphlebotomizespresbytershipdisubstitutedinhabitationsphlebotomistspolybutadienepresbyteratespresbyterials

About this list

Words
18 (6 common words)
Common example
acrobatically
Rare example
presbyterials
Doubled letters
2
Ending in S
8
Most frequent letter
I (17)

Questions

How many 13-letter words matching ____b_t______ are there?

18. 6 of them are common words.

What is a common example?

ACROBATICALLY is among the common words in this set.