13-Letter Words Matching ____S____T___

There are 63 13-letter words that match ____S____T___. 29 are common words, such as ASSASSINATING and ASSASSINATION. A rarer one is TRANSPLANTERS. In this set, I is the most frequent open letter (58 words). 14 words contain a doubled letter.

Full list 63

Common words

assassinatingassassinationdomesticatingdomesticationdomesticitiesexpostulatingexpostulationguesstimatinghairsplittershairsplittingimpassivitiesindisposition
assassinatingassassinationdomesticatingdomesticationdomesticitiesexpostulatingexpostulationguesstimatinghairsplittershairsplittingimpassivitiesindispositioninvestigatinginvestigationinvestigativeinvestigatorsinvestigatorynecessitatingoversensitiveredistrictingresuscitatingresuscitationresuscitatorssidesplittingtranscriptiontransmutationtranspirationtransplantingtranspositionantisymmetricendoskeletonsexpostulatoryhyposensitizeindistinctivemonosymmetricnecessitationpolysyndetonsresuscitativetranscriptivetranslocationtransmutativeuninstructiveaccustomationassassinatorscoresidentialcytoskeletonsharuspicationmisassumptionmisestimatingmisestimationoversecretionredescriptionrediscountingredispositionreinstitutingresistivitiesresystematizeschistositiessemisedentarytranscriptasetranslocatingtransmountaintransplanters

About this list

Words
63 (29 common words)
Common example
assassinating
Rare example
transplanters
Doubled letters
14
Ending in S
12
Most frequent letter
I (58)

Questions

How many 13-letter words matching ____s____t___ are there?

63. 29 of them are common words.

What is a common example?

ASSASSINATING is among the common words in this set.