13-Letter Words Matching O___________N

There are 15 13-letter words that match O___________N. 2 are common words, such as ORCHESTRATION and ORNAMENTATION. A rarer one is OXYHEMOGLOBIN. 3 words contain a doubled letter.

Full list 15

orchestrationornamentationoctodecillionornithischianorthohydrogenoverexpansionovervaluationoverassertionoverattentionovereducationoverextensionoverinflationovernutritionoversecretionoxyhemoglobin

About this list

Words
15 (2 common words)
Common example
orchestration
Rare example
oxyhemoglobin
Doubled letters
3
Ending in S
0

Questions

How many 13-letter words matching o___________n are there?

15. 2 of them are common words.

What is a common example?

ORCHESTRATION is among the common words in this set.