13-Letter Words Matching _O__N________

There are 51 13-letter words that match _O__N________. 13 are common words, such as COLONIZATIONS and COLONOSCOPIES. A rarer one is VOLUNTARYISTS. In this set, I is the most frequent open letter (43 words). 7 words contain a doubled letter.

Full list 51

Common words

colonizationscolonoscopiesdomineeringlymomentarinessmomentousnessmononucleosesmononucleosisnomenclaturesnonindustrialnoninfectiousromanticizingvolunteerisms
colonizationscolonoscopiesdomineeringlymomentarinessmomentousnessmononucleosesmononucleosisnomenclaturesnonindustrialnoninfectiousromanticizingvolunteerismswomanlinessescoronavirusesnomenclaturalnonintegratednoninterlacednonintoxicantpotentiometervoluntarinessvoluntaristiccoconspiratorcogenerationscolinearitiescolonialisticcolonializingcolonisationscomanagementseosinophiliasfortnightlieshominizationsmononucleatednonantibioticnonengagementnoninclusionsnonincreasingnonincumbentsnonindigenousnonindividualnoninfluencesnoninsurancesnonuniformitynonuniquenessnonuniversalsnonuniversitypogonophoranspotentiationsromanizationsromanticisingvoluntaryismsvoluntaryists

About this list

Words
51 (13 common words)
Common example
colonizations
Rare example
voluntaryists
Doubled letters
7
Ending in S
31
Most frequent letter
I (43)

Questions

How many 13-letter words matching _o__n________ are there?

51. 13 of them are common words.

What is a common example?

COLONIZATIONS is among the common words in this set.