15-Letter Words Matching R_____________Y

There are 15 15-letter words that match R_____________Y. 3 are common words, such as RADIOTELEGRAPHY and RETROSPECTIVELY. A rarer one is ROENTGENOGRAPHY. 4 words contain a doubled letter.

Full list 15

radiotelegraphyretrospectivelyritualisticallyradiometricallyreconcilabilityreproducibilityretrogressivelyradioautographyradiochemicallyrecognizabilityreduplicativelyrememberabilityremonstrativelyrevolutionarilyroentgenography

About this list

Words
15 (3 common words)
Common example
radiotelegraphy
Rare example
roentgenography
Doubled letters
4
Ending in S
0

Questions

How many 15-letter words matching r_____________y are there?

15. 3 of them are common words.

What is a common example?

RADIOTELEGRAPHY is among the common words in this set.