15-Letter Words Matching __R__A_________

There are 16 15-letter words that match __R__A_________. 4 are common words, such as AGREEABLENESSES and BURGLARPROOFING. A rarer one is XERORADIOGRAPHY. In this set, E is the most frequent open letter (14 words). 8 words contain a doubled letter.

Full list 16

agreeablenessesburglarproofingmarriageabilityparliamentarianchromatographicirreparablenessmerchantabilityperipateticallyadrenalectomiesbarefacednesseschromatographedchromatographerderivatizationsirritablenessesveritablenessesxeroradiography

About this list

Words
16 (4 common words)
Common example
agreeablenesses
Rare example
xeroradiography
Doubled letters
8
Ending in S
7
Most frequent letter
E (14)

Questions

How many 15-letter words matching __r__a_________ are there?

16. 4 of them are common words.

What is a common example?

AGREEABLENESSES is among the common words in this set.