13-Letter Words Matching O____O_______

There are 36 13-letter words that match O____O_______. 6 are common words, such as OCEANOGRAPHER and OCEANOGRAPHIC. A rarer one is OVERNOURISHES. In this set, E is the most frequent open letter (30 words). 7 words contain a doubled letter.

Full list 36

Common words

oceanographeroceanographicoutspokennessoverconfidentoverpopulatedoverpopulatesodontologicalomnicompetentontologicallyorganogenesisorganotherapyoceanologists
oceanographeroceanographicoutspokennessoverconfidentoverpopulatedoverpopulatesodontologicalomnicompetentontologicallyorganogenesisorganotherapyoceanologistsodontoblasticodontoglossumoneiromanciesonychophoransopenmouthedlyopinionatedlyorganogenesesorganogeneticorismologicaloverborrowingovercommittedoverconcernedoverconsciousoverconstructoverconsumingovercorrectedoverdocumentsoverdominanceoverfocussingovergoverningoverlordshipsovermodulatedovernourishedovernourishes

About this list

Words
36 (6 common words)
Common example
oceanographer
Rare example
overnourishes
Doubled letters
7
Ending in S
11
Most frequent letter
E (30)

Questions

How many 13-letter words matching o____o_______ are there?

36. 6 of them are common words.

What is a common example?

OCEANOGRAPHER is among the common words in this set.