12-Letter Words Matching ___B___N____

There are 13 12-letter words that match ___B___N____. 5 are common words, such as CARBORUNDUMS and DUMBFOUNDING. A rarer one is TURBULENCIES. In this set, I is the most frequent open letter (10 words). 2 words contain a doubled letter.

Full list 13

carborundumsdumbfoundingoutbalancingstubbornnessunobtainabledumbfoundersgeobotanicalgeobotanistsmisbalancingmisbeginningnonbotanistsplebeianismsturbulencies

About this list

Words
13 (5 common words)
Common example
carborundums
Rare example
turbulencies
Doubled letters
2
Ending in S
7
Most frequent letter
I (10)

Questions

How many 12-letter words matching ___b___n____ are there?

13. 5 of them are common words.

What is a common example?

CARBORUNDUMS is among the common words in this set.