15-Letter Words Matching O_____N________

There are 17 15-letter words that match O_____N________. 3 are common words, such as OVERCONFIDENCES and OVERGENERALIZED. A rarer one is OXYPHENBUTAZONE. In this set, E is the most frequent open letter (17 words). 4 words contain a doubled letter.

Full list 17

overconfidencesovergeneralizedovergeneralizesontogeneticallyoverconsiderateoversensitivityoccidentalizingopinionatednessovercentralizedovercentralizesoverconfidentlyoverconstructedoverconsumptionovercontrollingoverlengtheningoverornamentingoxyphenbutazone

About this list

Words
17 (3 common words)
Common example
overconfidences
Rare example
oxyphenbutazone
Doubled letters
4
Ending in S
4
Most frequent letter
E (17)

Questions

How many 15-letter words matching o_____n________ are there?

17. 3 of them are common words.

What is a common example?

OVERCONFIDENCES is among the common words in this set.