13-Letter Words Matching R___O________

There are 69 13-letter words that match R___O________. 26 are common words, such as RADIOACTIVELY and RADIOACTIVITY. A rarer one is RUINOUSNESSES. In this set, I is the most frequent open letter (61 words). 10 words contain a doubled letter.

Full list 69

Common words

radioactivelyradioactivityradiographersradiographiesradioisotopesrandomizationratiocinatingratiocinationrationalisticrationalitiesrationalizingraucousnesses
radioactivelyradioactivityradiographersradiographiesradioisotopesrandomizationratiocinatingratiocinationrationalisticrationalitiesrationalizingraucousnessesrebroadcastedreinoculatingrephotographsreproachfullyreproductionsreprogrammingretroactivelyretrogressingretrogressionretrogressiveretrospectingretrospectionretrospectiverhododendronsradioactivateradiochemicalradiogalaxiesradiolocationradiotelegramratiocinativeratiocinatorsreasonabilityreinoculationreproachinglyretroactivityretroflexionsretroversionsrhinoplastiesrhizomorphousradiobiologicradiochemistsradioelementsradiographingradioisotopicradiolabelingradiolabelledradionuclidesradiothoriumsrationalisingrationalizersrechoreographregionalisticregionalizingrencounteringreproduciblesreproductivesreprographersreprographicsreprographiesreprovisionedretrocessionsretrodictionsretroflectionrhodochrositerhodomontadesriotousnessesruinousnesses

About this list

Words
69 (26 common words)
Common example
radioactively
Rare example
ruinousnesses
Doubled letters
10
Ending in S
29
Most frequent letter
I (61)

Questions

How many 13-letter words matching r___o________ are there?

69. 26 of them are common words.

What is a common example?

RADIOACTIVELY is among the common words in this set.