13-Letter Words Matching ______B___O__

There are 12 13-letter words that match ______B___O__. 6 are common words, such as CONTRIBUTIONS and DISTRIBUTIONS. A rarer one is EQUILIBRATORY. In this set, I is the most frequent open letter (11 words). 1 words contain a doubled letter.

Full list 12

contributionsdistributionsexacerbationsmasturbationsoverambitiousperturbationscontrabassoonpsychobiologychronobiologyconglobationsequilibratorsequilibratory

About this list

Words
12 (6 common words)
Common example
contributions
Rare example
equilibratory
Doubled letters
1
Ending in S
8
Most frequent letter
I (11)

Questions

How many 13-letter words matching ______b___o__ are there?

12. 6 of them are common words.

What is a common example?

CONTRIBUTIONS is among the common words in this set.