15-Letter Words Matching _____O_____N___

There are 30 15-letter words that match _____O_____N___. 9 are common words, such as ACRIMONIOUSNESS and CARDIOPULMONARY. A rarer one is UNREVOLUTIONARY. In this set, E is the most frequent open letter (27 words). 16 words contain a doubled letter.

Full list 30

Common words

acrimoniousnesscardiopulmonaryceremoniousnessmeritoriousnessoverconfidencespostconsonantalpreadolescencesteleconferencedteleconferenceschoriocarcinomaepiscopalianismfashionableness
acrimoniousnesscardiopulmonaryceremoniousnessmeritoriousnessoverconfidencespostconsonantalpreadolescencesteleconferencedteleconferenceschoriocarcinomaepiscopalianismfashionablenessinopportunenessirrevocablenesspassionlessnessstandoffishnessallegoricalnessemotionlessnessmontmorilloniteomnicompetencesopenmouthednessopinionatednessovercompliancesoverconfidentlyparadoxicalnessstratovolcanoesteratocarcinomaunfavorablenessunmelodiousnessunrevolutionary

About this list

Words
30 (9 common words)
Common example
acrimoniousness
Rare example
unrevolutionary
Doubled letters
16
Ending in S
21
Most frequent letter
E (27)

Questions

How many 15-letter words matching _____o_____n___ are there?

30. 9 of them are common words.

What is a common example?

ACRIMONIOUSNESS is among the common words in this set.