11-Letter Words Matching ____O____P_

There are 14 11-letter words that match ____O____P_. 7 are common words, such as AUTHORSHIPS and CENSORSHIPS. A rarer one is RECTORSHIPS. In this set, S is the most frequent open letter (13 words). 5 words contain a doubled letter.

Full list 14

authorshipscensorshipseditorshipsfellowshipsmuttonchopsnincompoopspillowslipsmicrofloppypastorshipsshadowgraphdoctorshipsfactorshipsmentorshipsrectorships

About this list

Words
14 (7 common words)
Common example
authorships
Rare example
rectorships
Doubled letters
5
Ending in S
12
Most frequent letter
S (13)

Questions

How many 11-letter words matching ____o____p_ are there?

14. 7 of them are common words.

What is a common example?

AUTHORSHIPS is among the common words in this set.