15-Letter Words Matching ____R_____N____

There are 30 15-letter words that match ____R_____N____. 5 are common words, such as ANTHROPOCENTRIC and BIDIRECTIONALLY. A rarer one is SUPERGOVERNMENT. In this set, I is the most frequent open letter (28 words). 9 words contain a doubled letter.

Full list 30

Common words

anthropocentricbidirectionallyinternationallyobstructionismsobstructionistsabstractionismsabstractionistsanthropogenesesanthropogenesischloramphenicolcongressionallyintercommunions
anthropocentricbidirectionallyinternationallyobstructionismsobstructionistsabstractionismsabstractionistsanthropogenesesanthropogenesischloramphenicolcongressionallyintercommunionsintermittenciesinterpersonallylibertarianismsobservationallyunparliamentarydestructionistshypermodernistshyperresponsiveinformationallyinterphalangealinterprovincialprepresidentialreservationistsrestrictionismsrestrictionistssupercontinentssuperconvenientsupergovernment

About this list

Words
30 (5 common words)
Common example
anthropocentric
Rare example
supergovernment
Doubled letters
9
Ending in S
15
Most frequent letter
I (28)

Questions

How many 15-letter words matching ____r_____n____ are there?

30. 5 of them are common words.

What is a common example?

ANTHROPOCENTRIC is among the common words in this set.