13-Letter Words Matching O_____N______

There are 16 13-letter words that match O_____N______. 6 are common words, such as OCTOGENARIANS and ORNAMENTATION. A rarer one is OVERORNAMENTS. In this set, E is the most frequent open letter (14 words). 2 words contain a doubled letter.

Full list 16

octogenariansornamentationoutstandinglyoverconfidentoversensitiveoverwinteringontogenicallyorthognathousoccidentalizeopinionatedlyoverconcernedoverconsciousoverconstructoverconsumingoverlengthensoverornaments

About this list

Words
16 (6 common words)
Common example
octogenarians
Rare example
overornaments
Doubled letters
2
Ending in S
5
Most frequent letter
E (14)

Questions

How many 13-letter words matching o_____n______ are there?

16. 6 of them are common words.

What is a common example?

OCTOGENARIANS is among the common words in this set.