11-Letter Words Matching _____O_S___

There are 25 11-letter words that match _____O_S___. 3 are common words, such as REUPHOLSTER and SPONSORSHIP. A rarer one is VOODOOISTIC. In this set, I is the most frequent open letter (20 words). 8 words contain a doubled letter.

Full list 25

Common words

reupholstersponsorshipwarehousingcuratorshipimmunoassaypatroonshipviceroyshipwarehousersceratopsianemperorshipequipoisinghomoiousian
reupholstersponsorshipwarehousingcuratorshipimmunoassaypatroonshipviceroyshipwarehousersceratopsianemperorshipequipoisinghomoiousianhylozoisticmonitorshipnonprossingoutcrossingoutdoorsmanoutdoorsmenoutgrossingoverconsumepraetorshipproctorshipsenatorshipsphenopsidsvoodooistic

About this list

Words
25 (3 common words)
Common example
reupholster
Rare example
voodooistic
Doubled letters
8
Ending in S
2
Most frequent letter
I (20)

Questions

How many 11-letter words matching _____o_s___ are there?

25. 3 of them are common words.

What is a common example?

REUPHOLSTER is among the common words in this set.