13-Letter Words Matching ____B_O______

There are 12 13-letter words that match ____B_O______. 2 are common words, such as AUTOBIOGRAPHY and NONABSORBENTS. A rarer one is TROUBLOUSNESS. In this set, R is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 12

autobiographynonabsorbentsagrobiologiescerebrospinalaerobiologiescryobiologiescryobiologistmalabsorptionnonabsorbablenonabsorptivereembroideredtroublousness

About this list

Words
12 (2 common words)
Common example
autobiography
Rare example
troublousness
Doubled letters
2
Ending in S
5
Most frequent letter
R (12)

Questions

How many 13-letter words matching ____b_o______ are there?

12. 2 of them are common words.

What is a common example?

AUTOBIOGRAPHY is among the common words in this set.