13-Letter Words Matching ____R____R___

There are 44 13-letter words that match ____R____R___. 10 are common words, such as GIMCRACKERIES and GUBERNATORIAL. A rarer one is UNDERSTEERING. In this set, E is the most frequent open letter (38 words). 4 words contain a doubled letter.

Full list 44

Common words

gimcrackeriesgubernatorialobservatoriesproprietariesproprietorialreformatoriesrestructuringsupernaturalssupernumerarysupersaturatecalorimetrieschiaroscurist
gimcrackeriesgubernatorialobservatoriesproprietariesproprietorialreformatoriesrestructuringsupernaturalssupernumerarysupersaturatecalorimetrieschiaroscuristdoctrinairismexterritorialheteropterousheterosporousintersiderealpoltrooneriesproprietarilysubtreasuriessuburbicarianwatercoloristchlorohydrinschloropicrinscolorimetriescoparcenariesexpurgatorialfluorimetriesfluorometriesheterosporieshyperpolarizeinformatorilyinterdistrictinterlayeringintermembraneinterobservermistranscribepolarimetriesquadrumviratesuperluxuriessupermajoritysuperpowerfulunderreportedundersteering

About this list

Words
44 (10 common words)
Common example
gimcrackeries
Rare example
understeering
Doubled letters
4
Ending in S
19
Most frequent letter
E (38)

Questions

How many 13-letter words matching ____r____r___ are there?

44. 10 of them are common words.

What is a common example?

GIMCRACKERIES is among the common words in this set.