9-Letter Words Matching ____R_O__

There are 181 9-letter words that match ____R_O__. 93 are common words, such as AFTERNOON and AFTERWORD. A rarer one is WORMROOTS. In this set, E is the most frequent open letter (125 words). 70 words contain a doubled letter.

Full list 181

Common words

afternoonafterwordanteroomsarterioleballroomsbathroomscavernouschoirboyscongruousdarkroomsdeliriousdiarrhoea
afternoonafterwordanteroomsarterioleballroomsbathroomscavernouschoirboyscongruousdarkroomsdeliriousdiarrhoeadisproofseiderdownembargoedembargoesescargotsexteriorsgovernorshazardousheadroomshilarioushomeroomshyperbolahyperboleimperiousincuriousinferiorsinjuriousinnermostinnersoleintercomsinteriorsinterlockinterlopeinterposeinterwovelaboriousliverwortlowermostluxuriousmacaroonsmajordomomotorboatmushroomsnefariousnevermorenewsroomsnotoriousoffertoryoutermostpaperboyspaperworkpenuriousplayroomspoltroonspoolroomspowerboatpyorrhoearepertoryreservoirrestroomsriverboatshowroomssickroomssugarcoatsuperiorssupermomssupernovasuperposeswearwordtomorrowsundercoatunderdogsunderdoneunderfootundergoesundergoneundermostundersoldundertoneundertookundertowsunpersonsuppermostuttermostvagariousvicariouswardroomswashroomswaterfowlwaterholeworkroomsafterbodyaftermostalgarrobaalumrootsarboreousbackroomsbeetrootsbifariousbriarrootbriarwoodbrierrootbrierwoodcentriolecinereousclearcolecoatroomseukaryotefeverrootfeverwortginormoushyperforminterjoininternodeinterworkmezereonsmiterwortsaleroomsscirrhousspearwortsquarrosesuperbombsupercoolsuperloadsusurrousuncuriousunderbodyundercoolunderwoodunseriouswaterloosairproofsaspersorsassertorsbigaroonscedarwoodclubroomsclubrootsdecurionsendorsorseucaryotefireroomsgombroonshypergolsindorsorsinharmonyinterfoldintermontinterzoneinvertorsmalariousmotordomsoctoroonsoestriolsoutercoatpicaroonspinkrootspokerootsquadroonsroserootssugarloafsupercoilsupercopssupergoodsuperjocksuperportsuperroadsupersofttoolroomsunderbossunderdoesundergodsunderwoolwareroomswaterdogswaterlogswaterwornwaterzooiwormroots

About this list

Words
181 (93 common words)
Common example
afternoon
Rare example
wormroots
Doubled letters
70
Ending in S
96
Most frequent letter
E (125)

Questions

How many 9-letter words matching ____r_o__ are there?

181. 93 of them are common words.

What is a common example?

AFTERNOON is among the common words in this set.