13-Letter Words Matching O__________O_

There are 12 13-letter words that match O__________O_. 2 are common words, such as ORCHESTRATION and ORNAMENTATION. A rarer one is OVERSECRETION. 3 words contain a doubled letter.

Full list 12

orchestrationornamentationoctodecillionoverexpansionovervaluationoverassertionoverattentionovereducationoverextensionoverinflationovernutritionoversecretion

About this list

Words
12 (2 common words)
Common example
orchestration
Rare example
oversecretion
Doubled letters
3
Ending in S
0

Questions

How many 13-letter words matching o__________o_ are there?

12. 2 of them are common words.

What is a common example?

ORCHESTRATION is among the common words in this set.