13-Letter Words Matching ______R___R__

There are 13 13-letter words that match ______R___R__. 3 are common words, such as CHECKERBOARDS and PLASTERBOARDS. A rarer one is UNDERPREPARED. In this set, E is the most frequent open letter (12 words). 3 words contain a doubled letter.

Full list 13

checkerboardsplasterboardsthunderstormsclapperboardscounterchargegynandromorphphotogravuresweatherboardscounterterrorflutterboardsmagistraturesphycoerythrinunderprepared

About this list

Words
13 (3 common words)
Common example
checkerboards
Rare example
underprepared
Doubled letters
3
Ending in S
8
Most frequent letter
E (12)

Questions

How many 13-letter words matching ______r___r__ are there?

13. 3 of them are common words.

What is a common example?

CHECKERBOARDS is among the common words in this set.