15-Letter Words Matching R_____A________

There are 22 15-letter words that match R_____A________. 3 are common words, such as RATIONALIZATION and RECONNAISSANCES. A rarer one is REVISUALIZATION. In this set, I is the most frequent open letter (22 words). 3 words contain a doubled letter.

Full list 22

rationalizationreconnaissancesrecontaminatingrecontaminationrenormalizationresocializationreasonabilitiesrecallabilitiesreformabilitiesrefundabilitiesregionalizationreimplantationsreinstallationsremediabilitiesrepairabilitiesrepeatabilitiesreplicabilitiesreprivatizationrepudiationistsresectabilitiesreservationistsrevisualization

About this list

Words
22 (3 common words)
Common example
rationalization
Rare example
revisualization
Doubled letters
3
Ending in S
14
Most frequent letter
I (22)

Questions

How many 15-letter words matching r_____a________ are there?

22. 3 of them are common words.

What is a common example?

RATIONALIZATION is among the common words in this set.