12-Letter Words Matching __S___O_____

There are 55 12-letter words that match __S___O_____. 19 are common words, such as COSMOGONISTS and COSMOLOGICAL. A rarer one is TESTCROSSING. In this set, I is the most frequent open letter (48 words). 15 words contain a doubled letter.

Full list 55

Common words

cosmogonistscosmologicalcosmologistscosmopolitandisappointeddisassociatediscolouringdisembodyingdisemboweleddishonorabledishonorablyhistologists
cosmogonistscosmologicalcosmologistscosmopolitandisappointeddisassociatediscolouringdisembodyingdisemboweleddishonorabledishonorablyhistologistsmisinformingmisreportingpussyfootingrustproofingtestimonialsunseasonableunseasonablybasidiosporecosmogonicalcosmopolitesdisaccordingdisafforestsdisallowancefissirostralhistologicalhistrionicalhysterogenicinsomnolencemystagogicalpositionallyvasectomizedvasectomizescosmopolisesdisemboguingdisendowmentdisunionistsdysmenorrheamesothoracesmesothoracicmesothoraxesmisallocatedmisallocatesmisenrollingmisrecordingmuseologicalmuseologistspositroniumspostabortionpostneonatalpussyfootersrespirometerrespirometrytestcrossing

About this list

Words
55 (19 common words)
Common example
cosmogonists
Rare example
testcrossing
Doubled letters
15
Ending in S
15
Most frequent letter
I (48)

Questions

How many 12-letter words matching __s___o_____ are there?

55. 19 of them are common words.

What is a common example?

COSMOGONISTS is among the common words in this set.