13-Letter Words Matching ____R__B_____

There are 15 13-letter words that match ____R__B_____. 2 are common words, such as INVARIABILITY and INVERTEBRATES. A rarer one is SUPERSUBTLETY. 3 words contain a doubled letter.

Full list 15

invariabilityinvertebratesaffordabilityexportabilityobservabilityreversibilityunworkabilityabsorbabilitydeterrabilityhypermobilityhyperurbanismreformabilitysupercabinetssuperlobbyistsupersubtlety

About this list

Words
15 (2 common words)
Common example
invariability
Rare example
supersubtlety
Doubled letters
3
Ending in S
2

Questions

How many 13-letter words matching ____r__b_____ are there?

15. 2 of them are common words.

What is a common example?

INVARIABILITY is among the common words in this set.