14-Letter Words Matching ____R___R_____

There are 38 14-letter words that match ____R___R_____. 10 are common words, such as CONTROVERTIBLE and DISPROPORTIONS. A rarer one is UNDERNUTRITION. In this set, E is the most frequent open letter (37 words). 8 words contain a doubled letter.

Full list 38

Common words

controvertibledisproportionsintermarriagesinterspersionsobstreperouslyproprietressesundercarriagesundernourishedundersecretarywaterboardingscopartnershipsheterochromous
controvertibledisproportionsintermarriagesinterspersionsobstreperouslyproprietressesundercarriagesundernourishedundersecretarywaterboardingscopartnershipsheterochromoushypermetropiasintermigrationsuperpatrioticarteriographicheterokaryosesheterokaryosisheterokaryoticheteromorphismhyperawarenesshypercorrectlyhyperenergetichyperexcretionhypersecretioninstructressesintercorrelateinteroperativeintersterilityisoproterenolsmoderatorshipspostretirementsabermetriciansemiretirementsuperexpressessupernutritionsupersecreciesundernutrition

About this list

Words
38 (10 common words)
Common example
controvertible
Rare example
undernutrition
Doubled letters
8
Ending in S
17
Most frequent letter
E (37)

Questions

How many 14-letter words matching ____r___r_____ are there?

38. 10 of them are common words.

What is a common example?

CONTROVERTIBLE is among the common words in this set.