15-Letter Words Matching _R_____A_______

There are 19 15-letter words that match _R_____A_______. 5 are common words, such as PRESERVATIONIST and PRETERNATURALLY. A rarer one is TRISOCTAHEDRONS. In this set, N is the most frequent open letter (17 words). 8 words contain a doubled letter.

Full list 19

preservationistpreternaturallyproblematicallytransplantationwrongheadednesscryptanalyticalirreparablenessirrevocablenesspresentationismpreservationismarchaebacteriumariboflavinosesariboflavinosispracticablenesspracticalnessespreformationistpreimplantationpresentablenesstrisoctahedrons

About this list

Words
19 (5 common words)
Common example
preservationist
Rare example
trisoctahedrons
Doubled letters
8
Ending in S
9
Most frequent letter
N (17)

Questions

How many 15-letter words matching _r_____a_______ are there?

19. 5 of them are common words.

What is a common example?

PRESERVATIONIST is among the common words in this set.