13-Letter Words Matching _____B_A_____

There are 20 13-letter words that match _____B_A_____. 5 are common words, such as CHILDBEARINGS and SKATEBOARDERS. A rarer one is SUBLIBRARIANS. In this set, N is the most frequent open letter (18 words). 3 words contain a doubled letter.

Full list 20

childbearingsskateboardersskateboardingtrailblazingswaterboardingassemblagistsbreadboardingconnubialismsdermabrasionselucubrationsencumbrancersmotorboatingsmultibranchedneuroblastomanonlibrariansrekeyboardingremembrancersspeedboatingsstoryboardingsublibrarians

About this list

Words
20 (5 common words)
Common example
childbearings
Rare example
sublibrarians
Doubled letters
3
Ending in S
13
Most frequent letter
N (18)

Questions

How many 13-letter words matching _____b_a_____ are there?

20. 5 of them are common words.

What is a common example?

CHILDBEARINGS is among the common words in this set.