10-Letter Words Matching O________C

There are 14 10-letter words that match O________C. 5 are common words, such as OLIGARCHIC and OPHTHALMIC. A rarer one is OSTEOGENIC. In this set, I is the most frequent open letter (14 words). 0 words contain a doubled letter.

Full list 14

oligarchicophthalmicoptimisticorganismicorthopedicoptometricorographicorthogenicoxymoronicoligomericoliviniticorogeneticosmometricosteogenic

About this list

Words
14 (5 common words)
Common example
oligarchic
Rare example
osteogenic
Doubled letters
0
Ending in S
0
Most frequent letter
I (14)

Questions

How many 10-letter words matching o________c are there?

14. 5 of them are common words.

What is a common example?

OLIGARCHIC is among the common words in this set.