14-Letter Words Matching _R_G__________

There are 14 14-letter words that match _R_G__________. 7 are common words, such as FRAGMENTATIONS and GREGARIOUSNESS. A rarer one is PROGRESSIVISTS. In this set, I is the most frequent open letter (14 words). 7 words contain a doubled letter.

Full list 14

fragmentationsgregariousnesspriggishnessesprognosticatedprognosticatesprognosticatortrigonometriesorographicallyprogestationalprogressionisttragicomicallypregnabilitiesprogressivismsprogressivists

About this list

Words
14 (7 common words)
Common example
fragmentations
Rare example
progressivists
Doubled letters
7
Ending in S
8
Most frequent letter
I (14)

Questions

How many 14-letter words matching _r_g__________ are there?

14. 7 of them are common words.

What is a common example?

FRAGMENTATIONS is among the common words in this set.