15-Letter Words Matching ___O______O____

There are 13 15-letter words that match ___O______O____. 5 are common words, such as DECOMMISSIONING and ENDOCRINOLOGIES. A rarer one is UNCOMPASSIONATE. In this set, S is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 13

decommissioningendocrinologiesendocrinologistinconspicuouslyrecommissioningautotransformerthromboembolismautochthonouslychronobiologieschronobiologistcolonizationistoptoelectronicsuncompassionate

About this list

Words
13 (5 common words)
Common example
decommissioning
Rare example
uncompassionate
Doubled letters
3
Ending in S
3
Most frequent letter
S (13)

Questions

How many 15-letter words matching ___o______o____ are there?

13. 5 of them are common words.

What is a common example?

DECOMMISSIONING is among the common words in this set.