12-Letter Words Matching ____R__O____

There are 92 12-letter words that match ____R__O____. 28 are common words, such as ACCORDIONIST and AFTERTHOUGHT. A rarer one is WATERPROOFER. In this set, E is the most frequent open letter (78 words). 20 words contain a doubled letter.

Full list 92

Common words

accordionistafterthoughtanthropologyapportioningcaparisoningchloroformeddiversionaryexcursionistextortionateextortionersextortionistfuturologies
accordionistafterthoughtanthropologyapportioningcaparisoningchloroformeddiversionaryexcursionistextortionateextortionersextortionistfuturologiesfuturologistgastronomiesheterodoxiesimperviouslylaboratoriesmineralogiesmineralogistmispronouncenumerologiesnumerologistscurrilouslyunderclothesundergroundsundergrowthsunderscoringwaterproofedclearstoriesdendrologisteuchromosomeextortionarygastrologisthemeralopiashemorrhoidalheterologousheteronomoushypertrophicimmersionismlachrymoselylachrymositylaparotomiesquadrinomialreversionaryreversionerssclerotomiessupercoolingsupererogateunderproduceunderquotingdendrologiesdextrorotarydiversionistenterococcalenterococcusenterocoelesenterocoelicenterotoxinsgastronomistheterogoniesheteronomieshyperarousalimperatorialintercoolersintercroppedintercrossedintercrossesintergrowthsinterwroughtliturgiologymembranouslymisericordesneoorthodoxynephrologiesnephrologistneutrinolessnonfrivolousoverreportedpapyrologiespapyrologistpolyribosomepowerbrokerspropranololssuperaboundssuperegoistssupergrowthssuperprofitsundercoolingunderstorieswatercoolerswaterfloodedwaterproofer

About this list

Words
92 (28 common words)
Common example
accordionist
Rare example
waterproofer
Doubled letters
20
Ending in S
39
Most frequent letter
E (78)

Questions

How many 12-letter words matching ____r__o____ are there?

92. 28 of them are common words.

What is a common example?

ACCORDIONIST is among the common words in this set.