13-Letter Words Matching __T____B_____

There are 20 13-letter words that match __T____B_____. 2 are common words, such as ATTAINABILITY and INTANGIBILITY. A rarer one is ULTRALIBERALS. In this set, I is the most frequent open letter (19 words). 3 words contain a doubled letter.

Full list 20

attainabilityintangibilityautostabilitydetachabilitydetectabilityextendabilityextendibilityextensibilityintegrabilitymetastabilityostensibilitypatentabilityretainabilityantiglobulinsbetweenbrainscytomembranesdeterrabilityextrudabilityobtainabilityultraliberals

About this list

Words
20 (2 common words)
Common example
attainability
Rare example
ultraliberals
Doubled letters
3
Ending in S
4
Most frequent letter
I (19)

Questions

How many 13-letter words matching __t____b_____ are there?

20. 2 of them are common words.

What is a common example?

ATTAINABILITY is among the common words in this set.