12-Letter Words Matching B_________I_

There are 13 12-letter words that match B_________I_. 3 are common words, such as BELLETRISTIC and BRINKMANSHIP. A rarer one is BRONCHOGENIC. In this set, E is the most frequent open letter (10 words). 3 words contain a doubled letter.

Full list 13

belletristicbrinkmanshipbureaucraticbathypelagicbibliophilicbilharziasisbiosynthesisbiosyntheticballetomaniabetweenbrainbioenergeticblastocoelicbronchogenic

About this list

Words
13 (3 common words)
Common example
belletristic
Rare example
bronchogenic
Doubled letters
3
Ending in S
2
Most frequent letter
E (10)

Questions

How many 12-letter words matching b_________i_ are there?

13. 3 of them are common words.

What is a common example?

BELLETRISTIC is among the common words in this set.