11-Letter Words Matching ____O__P___

There are 22 11-letter words that match ____O__P___. 6 are common words, such as PHILOSOPHER and PHILOSOPHIC. A rarer one is STENOTYPIST. In this set, I is the most frequent open letter (21 words). 2 words contain a doubled letter.

Full list 22

philosopherphilosophicphotocopiedphotocopierphotocopiesvideotapingprototypingmicroamperemicrocopiesnarcolepticsellotapingglycolipidskaryotypingmicropipetsneurolepticphenocopiesphilosophesphotomappedspanokopitastenotypiesstenotypingstenotypist

About this list

Words
22 (6 common words)
Common example
philosopher
Rare example
stenotypist
Doubled letters
2
Ending in S
7
Most frequent letter
I (21)

Questions

How many 11-letter words matching ____o__p___ are there?

22. 6 of them are common words.

What is a common example?

PHILOSOPHER is among the common words in this set.