12-Letter Words Matching _____B___O__

There are 21 12-letter words that match _____B___O__. 9 are common words, such as APPROBATIONS and ATTRIBUTIONS. A rarer one is PRELIBATIONS. In this set, I is the most frequent open letter (19 words). 5 words contain a doubled letter.

Full list 21

approbationsattributionsbellybuttonsconurbationsmicrobiologyneighborhoodprohibitionsretributionswheelbarrowsastrobiologyneurobiologypaleobiologyphytobiologyradiobiologyreprobationssociobiologyhydrobiologynonambiguouspathobiologyphotobiologyprelibations

About this list

Words
21 (9 common words)
Common example
approbations
Rare example
prelibations
Doubled letters
5
Ending in S
10
Most frequent letter
I (19)

Questions

How many 12-letter words matching _____b___o__ are there?

21. 9 of them are common words.

What is a common example?

APPROBATIONS is among the common words in this set.