15-Letter Words Matching _________RS____

There are 13 15-letter words that match _________RS____. 3 are common words, such as AMBASSADORSHIPS and CHANCELLORSHIPS. A rarer one is SEROCONVERSIONS. 4 words contain a doubled letter.

Full list 13

ambassadorshipschancellorshipsproprietorshipscontrollershipsinstructorshipsantisubversionsantisubversivescouncillorshipsheadmastershipslegislatorshipspostmastershipssemisubmersibleseroconversions

About this list

Words
13 (3 common words)
Common example
ambassadorships
Rare example
seroconversions
Doubled letters
4
Ending in S
12

Questions

How many 15-letter words matching _________rs____ are there?

13. 3 of them are common words.

What is a common example?

AMBASSADORSHIPS is among the common words in this set.