13-Letter Words Matching _O_______N___

There are 114 13-letter words that match _O_______N___. 50 are common words, such as BOUNDLESSNESS and BOUNTEOUSNESS. A rarer one is WORRISOMENESS. In this set, E is the most frequent open letter (97 words). 66 words contain a doubled letter.

Full list 114

Common words

boundlessnessbounteousnessbountifulnesscolorfastnesscolorlessnesscombativenesscommissionerscommissioningcompartmentalcompassionatecomplaisancescomplaisantly
boundlessnessbounteousnessbountifulnesscolorfastnesscolorlessnesscombativenesscommissionerscommissioningcompartmentalcompassionatecomplaisancescomplaisantlyconceitednessconcessionaryconcomitantlyconfectionersconfectioneryconfessionalsconfraternityconsanguinityconsciousnesscontentednesscontortionistcountermandedcountertenorscourteousnessdomineeringlyfoolhardinessforeordainingforgetfulnesshonorablenesshotheadednesshousecleaningloathsomenessmomentarinessmomentousnessnoiselessnessnonexistencesnonjudgmentalnonsustainingpointlessnessponderousnesspostmodernismpostmodernistpowerlessnesssorrowfulnessvoicelessnessvoraciousnesswonderfulnessworthlessnesscomplaininglycompositenessconcessionersconcomitancesconcretionaryconducivenessconfectionaryconflictinglycongenialnesscongruousnessconnectednessconstituentlycontrarianismcontrastinglyconventioneercoreligionistcorrosivenesscounterminingdoubtlessnessmonstrousnessmorphophonemenonporousnessnormativenesspolycarbonatepostmodernitytolerablenesstoothsomenessvoluntarinesscodependencescollectednesscollieshangiecompartmentedcomradelinessconcertednessconclusionaryconcrescencesconfidingnessconfirmednessconfoundinglyconjugatenessconvulsionarycorporealnesscorruptionistdodecaphoniesdodecaphonistdownrightnessforgivingnessfortunatenesshouselessnessmonophthongalnonchauvinistnonindigenousnoninfluencesnoninsurancesnonlandownersnonleguminousnonrandomnessnonresidencesnonstationarynonuniquenesspossessednesstomboyishnesswoebegonenessworrisomeness

About this list

Words
114 (50 common words)
Common example
boundlessness
Rare example
worrisomeness
Doubled letters
66
Ending in S
73
Most frequent letter
E (97)

Questions

How many 13-letter words matching _o_______n___ are there?

114. 50 of them are common words.

What is a common example?

BOUNDLESSNESS is among the common words in this set.