9-Letter Words Matching O______O_

There are 28 9-letter words that match O______O_. 12 are common words, such as OBJECTION and OBSESSION. A rarer one is OZONATION. In this set, T is the most frequent open letter (20 words). 9 words contain a doubled letter.

Full list 28

Common words

objectionobsessionobtrusionobviationocclusionoperationoppressororatoriosovershootoverthrowovulationoxidation
objectionobsessionobtrusionobviationocclusionoperationoppressororatoriosovershootoverthrowovulationoxidationobligatorobligatosobreptionocotillosoctillionolecranonolfactionoutreasonovenproofobturatororrisrootostinatosoverfavoroverlaboroverproofozonation

About this list

Words
28 (12 common words)
Common example
objection
Rare example
ozonation
Doubled letters
9
Ending in S
4
Most frequent letter
T (20)

Questions

How many 9-letter words matching o______o_ are there?

28. 12 of them are common words.

What is a common example?

OBJECTION is among the common words in this set.