13-Letter Words Matching ____A__B_____

There are 12 13-letter words that match ____A__B_____. 3 are common words, such as COMPARABILITY and COMPATIBILITY. A rarer one is UPGRADABILITY. 1 words contain a doubled letter.

Full list 12

comparabilitycompatibilityimplacabilitydegradabilityinfeasibilityrepeatabilityunreadabilityappealabilitydefeasibilityspreadabilityultraliberalsupgradability

About this list

Words
12 (3 common words)
Common example
comparability
Rare example
upgradability
Doubled letters
1
Ending in S
1

Questions

How many 13-letter words matching ____a__b_____ are there?

12. 3 of them are common words.

What is a common example?

COMPARABILITY is among the common words in this set.