15-Letter Words Matching _R________N____

There are 19 15-letter words that match _R________N____. 2 are common words, such as PREPOSITIONALLY and PROHIBITIONISTS. A rarer one is TRANSUBSTANTIAL. In this set, I is the most frequent open letter (18 words). 4 words contain a doubled letter.

Full list 19

prepositionallyprohibitionistsgravitationallyornithorhynchusprointerventiontranscendenciestrinitrobenzeneariboflavinosesariboflavinosiscrestfallennessorientationallypreponderanciesprepresidentialprerevisionistsproletarianisedproletarianisesproletarianizedproletarianizestransubstantial

About this list

Words
19 (2 common words)
Common example
prepositionally
Rare example
transubstantial
Doubled letters
4
Ending in S
10
Most frequent letter
I (18)

Questions

How many 15-letter words matching _r________n____ are there?

19. 2 of them are common words.

What is a common example?

PREPOSITIONALLY is among the common words in this set.