12-Letter Words Matching R________R__

There are 18 12-letter words that match R________R__. 9 are common words, such as RECONFIGURED and RECONNOITRED. A rarer one is RHIZOSPHERES. In this set, E is the most frequent open letter (18 words). 3 words contain a doubled letter.

Full list 18

reconfiguredreconnoitredreconnoitresreconsideredrediscoveredrestructuredrestructuresrhododendronrotogravuresreconfiguresrhombohedralrhombohedronreengineeredrelicensuresrencounteredreregisteredretransformsrhizospheres

About this list

Words
18 (9 common words)
Common example
reconfigured
Rare example
rhizospheres
Doubled letters
3
Ending in S
7
Most frequent letter
E (18)

Questions

How many 12-letter words matching r________r__ are there?

18. 9 of them are common words.

What is a common example?

RECONFIGURED is among the common words in this set.