12-Letter Words Matching ______R_O___

There are 55 12-letter words that match ______R_O___. 18 are common words, such as BLABBERMOUTH and BROTHERHOODS. A rarer one is ZWITTERIONIC. In this set, E is the most frequent open letter (51 words). 26 words contain a doubled letter.

Full list 55

Common words

blabbermouthbrotherhoodschatterboxescheckerboardchildproofedcounterfoilscounterpointcounterpoiseflameproofedhaemorrhoidsmicrogroovesphilharmonic
blabbermouthbrotherhoodschatterboxescheckerboardchildproofedcounterfoilscounterpointcounterpoiseflameproofedhaemorrhoidsmicrogroovesphilharmonicplasterboardsoundproofedtheatergoersthunderboltswaterproofedweathercocksantinarcoticantiperiodicbladdernosesbladderwortsclapperboardcounterforcecountermovesflittermouseflutterboardleatherwoodsscraperboardscuppernongsslipperwortsvinegarroonsweatherboardcochairwomancochairwomencompatrioticcountercoupscountermovedcounterposedcounterposescounterpowercounterworlddiastereomerdichlorvosesflameprooferlacquerworksoverborrowedplasterworksscattergoodsspatterdockstheatergoingtoddlerhoodswaterprooferwidowerhoodszwitterionic

About this list

Words
55 (18 common words)
Common example
blabbermouth
Rare example
zwitterionic
Doubled letters
26
Ending in S
24
Most frequent letter
E (51)

Questions

How many 12-letter words matching ______r_o___ are there?

55. 18 of them are common words.

What is a common example?

BLABBERMOUTH is among the common words in this set.