12-Letter Words Matching I_____B_____

There are 20 12-letter words that match I_____B_____. 11 are common words, such as ILLEGIBILITY and IMMOVABILITY. A rarer one is INFUSIBILITY. 5 words contain a doubled letter.

Full list 20

illegibilityimmovabilityimmutabilityinaudibilityincapabilityineffabilityinsalubriousinsolubilityinvisibilityirascibilityirritabilityincurabilityindeliberateindelibilityinsolubilizeinsurabilityignitabilityimputabilityinducibilityinfusibility

About this list

Words
20 (11 common words)
Common example
illegibility
Rare example
infusibility
Doubled letters
5
Ending in S
1

Questions

How many 12-letter words matching i_____b_____ are there?

20. 11 of them are common words.

What is a common example?

ILLEGIBILITY is among the common words in this set.