15-Letter Words Matching O_________N____

There are 13 15-letter words that match O_________N____. 2 are common words, such as OBSTRUCTIONISMS and OBSTRUCTIONISTS. A rarer one is OVERORNAMENTING. 3 words contain a doubled letter.

Full list 13

obstructionismsobstructionistsobservationallyornithorhynchusoverinfluentialorientationallyoutdoorsmanshipoverdiscountingoverdocumentingoverhomogenizedoverhomogenizesoveropinionatedoverornamenting

About this list

Words
13 (2 common words)
Common example
obstructionisms
Rare example
overornamenting
Doubled letters
3
Ending in S
4

Questions

How many 15-letter words matching o_________n____ are there?

13. 2 of them are common words.

What is a common example?

OBSTRUCTIONISMS is among the common words in this set.