12-Letter Words Matching O_________O_

There are 12 12-letter words that match O_________O_. 6 are common words, such as OBLITERATION and OPTIMIZATION. A rarer one is ORGANISATION. In this set, T is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 12

obliterationoptimizationorganizationossificationoverexertionoverreactionorchestratoroverambitionovertaxationobnubilationoptimisationorganisation

About this list

Words
12 (6 common words)
Common example
obliteration
Rare example
organisation
Doubled letters
2
Ending in S
0
Most frequent letter
T (12)

Questions

How many 12-letter words matching o_________o_ are there?

12. 6 of them are common words.

What is a common example?

OBLITERATION is among the common words in this set.