12-Letter Words Matching ____R_G_____

There are 25 12-letter words that match ____R_G_____. 5 are common words, such as CONGREGATING and CONGREGATION. A rarer one is SUPEREGOISTS. In this set, O is the most frequent open letter (23 words). 3 words contain a doubled letter.

Full list 25

Common words

congregatingcongregationcopyrightingremortgagingsuffragettesdextrogyrateheterogameteheterograftsheterographyheterogynousoverregulatesteerageways
congregatingcongregationcopyrightingremortgagingsuffragettesdextrogyrateheterogameteheterograftsheterographyheterogynousoverregulatesteeragewayscongregatorsepeirogeniesfluorographyheterogametyheterogamiesheterogamousheterogeniesheterogenousheterogoniesmisprogramedpolarographypreprogramedsuperegoists

About this list

Words
25 (5 common words)
Common example
congregating
Rare example
superegoists
Doubled letters
3
Ending in S
12
Most frequent letter
O (23)

Questions

How many 12-letter words matching ____r_g_____ are there?

25. 5 of them are common words.

What is a common example?

CONGREGATING is among the common words in this set.