13-Letter Words Matching ___S___I_____

There are 39 13-letter words that match ___S___I_____. 10 are common words, such as GEOSTATIONARY and HORSEWHIPPING. A rarer one is TONSILLITIDES. In this set, E is the most frequent open letter (30 words). 15 words contain a doubled letter.

Full list 39

Common words

geostationaryhorsewhippingnonsensicallynonspecialistnonspiritualspresentimentsspasmodicallysubserviencessubservientlytonsillitisesconstrainableepistemically
geostationaryhorsewhippingnonsensicallynonspecialistnonspiritualspresentimentsspasmodicallysubserviencessubservientlytonsillitisesconstrainableepistemicallylissotrichousnonsubmissivephysoclistousprismaticallyprostatitisessonsofbitchessubspecialistsubspecializeunassimilableunassimilatedbiostatisticsconstrainedlyhorsewhippershousepaintersisosmoticallyisostaticallynonstationarynonsubsidizedphysostigminepresignifyingprespecifyingpresterilizedpresterilizesprestigiouslyprostatitidesressentimentstonsillitides

About this list

Words
39 (10 common words)
Common example
geostationary
Rare example
tonsillitides
Doubled letters
15
Ending in S
15
Most frequent letter
E (30)

Questions

How many 13-letter words matching ___s___i_____ are there?

39. 10 of them are common words.

What is a common example?

GEOSTATIONARY is among the common words in this set.